diff --git a/Telegram/Resources/tl/api.tl b/Telegram/Resources/tl/api.tl
index 7c4eb9272..364d793de 100644
--- a/Telegram/Resources/tl/api.tl
+++ b/Telegram/Resources/tl/api.tl
@@ -620,7 +620,7 @@ channelParticipant#15ebac1d user_id:int date:int = ChannelParticipant;
 channelParticipantSelf#a3289a6d user_id:int inviter_id:int date:int = ChannelParticipant;
 channelParticipantCreator#447dca4b flags:# user_id:int admin_rights:ChatAdminRights rank:flags.0?string = ChannelParticipant;
 channelParticipantAdmin#ccbebbaf flags:# can_edit:flags.0?true self:flags.1?true user_id:int inviter_id:flags.1?int promoted_by:int date:int admin_rights:ChatAdminRights rank:flags.2?string = ChannelParticipant;
-channelParticipantBanned#1c0facaf flags:# left:flags.0?true user_id:int kicked_by:int date:int banned_rights:ChatBannedRights = ChannelParticipant;
+channelParticipantBanned#50a1dfd6 flags:# left:flags.0?true peer:Peer kicked_by:int date:int banned_rights:ChatBannedRights = ChannelParticipant;
 channelParticipantLeft#c3c6796b user_id:int = ChannelParticipant;
 
 channelParticipantsRecent#de3f3c79 = ChannelParticipantsFilter;
@@ -632,10 +632,10 @@ channelParticipantsSearch#656ac4b q:string = ChannelParticipantsFilter;
 channelParticipantsContacts#bb6ae88d q:string = ChannelParticipantsFilter;
 channelParticipantsMentions#e04b5ceb flags:# q:flags.0?string top_msg_id:flags.1?int = ChannelParticipantsFilter;
 
-channels.channelParticipants#f56ee2a8 count:int participants:Vector<ChannelParticipant> users:Vector<User> = channels.ChannelParticipants;
+channels.channelParticipants#9ab0feaf count:int participants:Vector<ChannelParticipant> chats:Vector<Chat> users:Vector<User> = channels.ChannelParticipants;
 channels.channelParticipantsNotModified#f0173fe9 = channels.ChannelParticipants;
 
-channels.channelParticipant#d0d9b163 participant:ChannelParticipant users:Vector<User> = channels.ChannelParticipant;
+channels.channelParticipant#dfb80317 participant:ChannelParticipant chats:Vector<Chat> users:Vector<User> = channels.ChannelParticipant;
 
 help.termsOfService#780a0310 flags:# popup:flags.0?true id:DataJSON text:string entities:Vector<MessageEntity> min_age_confirm:flags.1?int = help.TermsOfService;
 
@@ -1557,7 +1557,7 @@ channels.deleteUserHistory#d10dd71b channel:InputChannel user_id:InputUser = mes
 channels.reportSpam#fe087810 channel:InputChannel user_id:InputUser id:Vector<int> = Bool;
 channels.getMessages#ad8c9a23 channel:InputChannel id:Vector<InputMessage> = messages.Messages;
 channels.getParticipants#123e05e9 channel:InputChannel filter:ChannelParticipantsFilter offset:int limit:int hash:int = channels.ChannelParticipants;
-channels.getParticipant#546dd7a6 channel:InputChannel user_id:InputUser = channels.ChannelParticipant;
+channels.getParticipant#a0ab6cc6 channel:InputChannel participant:InputPeer = channels.ChannelParticipant;
 channels.getChannels#a7f6bbb id:Vector<InputChannel> = messages.Chats;
 channels.getFullChannel#8736a09 channel:InputChannel = messages.ChatFull;
 channels.createChannel#3d5fb10f flags:# broadcast:flags.0?true megagroup:flags.1?true for_import:flags.3?true title:string about:string geo_point:flags.2?InputGeoPoint address:flags.2?string = Updates;
@@ -1573,7 +1573,7 @@ channels.deleteChannel#c0111fe3 channel:InputChannel = Updates;
 channels.exportMessageLink#e63fadeb flags:# grouped:flags.0?true thread:flags.1?true channel:InputChannel id:int = ExportedMessageLink;
 channels.toggleSignatures#1f69b606 channel:InputChannel enabled:Bool = Updates;
 channels.getAdminedPublicChannels#f8b036af flags:# by_location:flags.0?true check_limit:flags.1?true = messages.Chats;
-channels.editBanned#72796912 channel:InputChannel user_id:InputUser banned_rights:ChatBannedRights = Updates;
+channels.editBanned#96e6cd81 channel:InputChannel participant:InputPeer banned_rights:ChatBannedRights = Updates;
 channels.getAdminLog#33ddf480 flags:# channel:InputChannel q:string events_filter:flags.0?ChannelAdminLogEventsFilter admins:flags.1?Vector<InputUser> max_id:long min_id:long limit:int = channels.AdminLogResults;
 channels.setStickers#ea8ca4f9 channel:InputChannel stickerset:InputStickerSet = Bool;
 channels.readMessageContents#eab5dc38 channel:InputChannel id:Vector<int> = Bool;
@@ -1645,4 +1645,4 @@ stats.getMegagroupStats#dcdf8607 flags:# dark:flags.0?true channel:InputChannel
 stats.getMessagePublicForwards#5630281b channel:InputChannel msg_id:int offset_rate:int offset_peer:InputPeer offset_id:int limit:int = messages.Messages;
 stats.getMessageStats#b6e0a3f5 flags:# dark:flags.0?true channel:InputChannel msg_id:int = stats.MessageStats;
 
-// LAYER 125
+// LAYER 126
diff --git a/Telegram/SourceFiles/apiwrap.cpp b/Telegram/SourceFiles/apiwrap.cpp
index 6ee12a8d3..de5d1f8e1 100644
--- a/Telegram/SourceFiles/apiwrap.cpp
+++ b/Telegram/SourceFiles/apiwrap.cpp
@@ -1526,8 +1526,11 @@ void ApiWrap::applyLastParticipantsList(
 		MTP_flags(0),
 		MTP_int(0));
 	for (const auto &p : list) {
-		const auto userId = p.match([](const auto &data) {
-			return data.vuser_id().v;
+		const auto participantId = p.match([](
+				const MTPDchannelParticipantBanned &data) {
+			return peerFromMTP(data.vpeer());
+		}, [](const auto &data) {
+			return peerFromUser(data.vuser_id());
 		});
 		const auto adminCanEdit = (p.type() == mtpc_channelParticipantAdmin)
 			? p.c_channelParticipantAdmin().is_can_edit()
@@ -1542,27 +1545,32 @@ void ApiWrap::applyLastParticipantsList(
 		const auto restrictedRights = (p.type() == mtpc_channelParticipantBanned)
 			? p.c_channelParticipantBanned().vbanned_rights()
 			: emptyRestrictedRights;
-		if (!userId) {
+		if (!participantId) {
 			continue;
 		}
 
-		auto user = _session->data().user(userId);
+		const auto participant = _session->data().peer(participantId);
+		const auto user = participant->asUser();
 		if (p.type() == mtpc_channelParticipantCreator) {
+			Assert(user != nullptr);
 			const auto &creator = p.c_channelParticipantCreator();
 			const auto rank = qs(creator.vrank().value_or_empty());
 			channel->mgInfo->creator = user;
 			channel->mgInfo->creatorRank = rank;
 			if (!channel->mgInfo->admins.empty()) {
-				Data::ChannelAdminChanges(channel).add(userId, rank);
+				Data::ChannelAdminChanges(channel).add(
+					peerToUser(participantId),
+					rank);
 			}
 		}
-		if (!base::contains(channel->mgInfo->lastParticipants, user)) {
+		if (user
+			&& !base::contains(channel->mgInfo->lastParticipants, user)) {
 			channel->mgInfo->lastParticipants.push_back(user);
 			if (adminRights.c_chatAdminRights().vflags().v) {
 				channel->mgInfo->lastAdmins.emplace(
 					user,
 					MegagroupInfo::Admin{ adminRights, adminCanEdit });
-			} else if (restrictedRights.c_chatBannedRights().vflags().v != 0) {
+			} else if (Data::ChatBannedRightsFlags(restrictedRights) != 0) {
 				channel->mgInfo->lastRestricted.emplace(
 					user,
 					MegagroupInfo::Restricted{ restrictedRights });
@@ -1607,22 +1615,27 @@ void ApiWrap::applyBotsList(
 	auto botStatus = channel->mgInfo->botStatus;
 	auto keyboardBotFound = !history || !history->lastKeyboardFrom;
 	for (const auto &p : list) {
-		const auto userId = p.match([](const auto &data) {
-			return data.vuser_id().v;
+		const auto participantId = p.match([](
+				const MTPDchannelParticipantBanned &data) {
+			return peerFromMTP(data.vpeer());
+		}, [](const auto &data) {
+			return peerFromUser(data.vuser_id());
 		});
-		if (!userId) {
+		if (!participantId) {
 			continue;
 		}
 
-		auto user = _session->data().user(userId);
-		if (user->isBot()) {
+		const auto participant = _session->data().peer(participantId);
+		const auto user = participant->asUser();
+		if (user && user->isBot()) {
 			channel->mgInfo->bots.insert(user);
 			botStatus = 2;// (botStatus > 0/* || !i.key()->botInfo->readsAllHistory*/) ? 2 : 1;
 			if (!user->botInfo->inited) {
 				needBotsInfos = true;
 			}
 		}
-		if (!keyboardBotFound && user->id == history->lastKeyboardFrom) {
+		if (!keyboardBotFound
+			&& participant->id == history->lastKeyboardFrom) {
 			keyboardBotFound = true;
 		}
 	}
@@ -1657,7 +1670,7 @@ void ApiWrap::requestSelfParticipant(not_null<ChannelData*> channel) {
 	_selfParticipantRequests.emplace(channel);
 	request(MTPchannels_GetParticipant(
 		channel->inputChannel,
-		MTP_inputUserSelf()
+		MTP_inputPeerSelf()
 	)).done([=](const MTPchannels_ChannelParticipant &result) {
 		_selfParticipantRequests.erase(channel);
 		result.match([&](const MTPDchannels_channelParticipant &data) {
@@ -1698,11 +1711,13 @@ void ApiWrap::requestSelfParticipant(not_null<ChannelData*> channel) {
 
 void ApiWrap::kickParticipant(
 		not_null<ChatData*> chat,
-		not_null<UserData*> user) {
+		not_null<PeerData*> participant) {
+	Expects(participant->isUser());
+
 	request(MTPmessages_DeleteChatUser(
 		MTP_flags(0),
 		chat->inputChat,
-		user->inputUser
+		participant->asUser()->inputUser
 	)).done([=](const MTPUpdates &result) {
 		applyUpdates(result);
 	}).send();
@@ -1710,21 +1725,21 @@ void ApiWrap::kickParticipant(
 
 void ApiWrap::kickParticipant(
 		not_null<ChannelData*> channel,
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &currentRights) {
-	const auto kick = KickRequest(channel, user);
+	const auto kick = KickRequest(channel, participant);
 	if (_kickRequests.contains(kick)) return;
 
 	const auto rights = ChannelData::KickedRestrictedRights();
 	const auto requestId = request(MTPchannels_EditBanned(
 		channel->inputChannel,
-		user->inputUser,
+		participant->input,
 		rights
 	)).done([=](const MTPUpdates &result) {
 		applyUpdates(result);
 
-		_kickRequests.remove(KickRequest(channel, user));
-		channel->applyEditBanned(user, currentRights, rights);
+		_kickRequests.remove(KickRequest(channel, participant));
+		channel->applyEditBanned(participant, currentRights, rights);
 	}).fail([this, kick](const MTP::Error &error) {
 		_kickRequests.remove(kick);
 	}).send();
@@ -1734,20 +1749,20 @@ void ApiWrap::kickParticipant(
 
 void ApiWrap::unblockParticipant(
 		not_null<ChannelData*> channel,
-		not_null<UserData*> user) {
-	const auto kick = KickRequest(channel, user);
+		not_null<PeerData*> participant) {
+	const auto kick = KickRequest(channel, participant);
 	if (_kickRequests.contains(kick)) {
 		return;
 	}
 
 	const auto requestId = request(MTPchannels_EditBanned(
 		channel->inputChannel,
-		user->inputUser,
+		participant->input,
 		MTP_chatBannedRights(MTP_flags(0), MTP_int(0))
 	)).done([=](const MTPUpdates &result) {
 		applyUpdates(result);
 
-		_kickRequests.remove(KickRequest(channel, user));
+		_kickRequests.remove(KickRequest(channel, participant));
 		if (channel->kickedCount() > 0) {
 			channel->setKickedCount(channel->kickedCount() - 1);
 		} else {
@@ -3183,12 +3198,18 @@ void ApiWrap::refreshChannelAdmins(
 		const QVector<MTPChannelParticipant> &participants) {
 	Data::ChannelAdminChanges changes(channel);
 	for (const auto &p : participants) {
-		const auto userId = p.match([](const auto &data) {
-			return data.vuser_id().v;
+		const auto participantId = p.match([](
+				const MTPDchannelParticipantBanned &data) {
+			return peerFromMTP(data.vpeer());
+		}, [](const auto &data) {
+			return peerFromUser(data.vuser_id());
 		});
+		const auto userId = peerToUser(participantId);
 		p.match([&](const MTPDchannelParticipantAdmin &data) {
+			Assert(peerIsUser(participantId));
 			changes.add(userId, qs(data.vrank().value_or_empty()));
 		}, [&](const MTPDchannelParticipantCreator &data) {
+			Assert(peerIsUser(participantId));
 			const auto rank = qs(data.vrank().value_or_empty());
 			if (const auto info = channel->mgInfo.get()) {
 				info->creator = channel->owner().userLoaded(userId);
@@ -3196,7 +3217,9 @@ void ApiWrap::refreshChannelAdmins(
 			}
 			changes.add(userId, rank);
 		}, [&](const auto &data) {
-			changes.remove(userId);
+			if (userId) {
+				changes.remove(userId);
+			}
 		});
 	}
 }
diff --git a/Telegram/SourceFiles/apiwrap.h b/Telegram/SourceFiles/apiwrap.h
index 4d59c1c35..eadb14858 100644
--- a/Telegram/SourceFiles/apiwrap.h
+++ b/Telegram/SourceFiles/apiwrap.h
@@ -249,14 +249,16 @@ public:
 	void markMediaRead(not_null<HistoryItem*> item);
 
 	void requestSelfParticipant(not_null<ChannelData*> channel);
-	void kickParticipant(not_null<ChatData*> chat, not_null<UserData*> user);
+	void kickParticipant(
+		not_null<ChatData*> chat,
+		not_null<PeerData*> participant);
 	void kickParticipant(
 		not_null<ChannelData*> channel,
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &currentRights);
 	void unblockParticipant(
 		not_null<ChannelData*> channel,
-		not_null<UserData*> user);
+		not_null<PeerData*> participant);
 	void deleteAllFromUser(
 		not_null<ChannelData*> channel,
 		not_null<UserData*> from);
@@ -657,7 +659,7 @@ private:
 
 	using KickRequest = std::pair<
 		not_null<ChannelData*>,
-		not_null<UserData*>>;
+		not_null<PeerData*>>;
 	base::flat_map<KickRequest, mtpRequestId> _kickRequests;
 
 	base::flat_set<not_null<ChannelData*>> _selfParticipantRequests;
diff --git a/Telegram/SourceFiles/boxes/peers/add_participants_box.cpp b/Telegram/SourceFiles/boxes/peers/add_participants_box.cpp
index 4a37d1b93..e6abb774e 100644
--- a/Telegram/SourceFiles/boxes/peers/add_participants_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/add_participants_box.cpp
@@ -467,8 +467,9 @@ void AddSpecialBoxController::loadMoreRows() {
 				int availableCount,
 				const QVector<MTPChannelParticipant> &list) {
 			for (const auto &data : list) {
-				if (const auto user = _additional.applyParticipant(data)) {
-					appendRow(user);
+				if (const auto participant = _additional.applyParticipant(
+						data)) {
+					appendRow(participant);
 				}
 			}
 			if (const auto size = list.size()) {
@@ -502,9 +503,9 @@ void AddSpecialBoxController::rowClicked(not_null<PeerListRow*> row) {
 
 template <typename Callback>
 bool AddSpecialBoxController::checkInfoLoaded(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		Callback callback) {
-	if (_additional.infoLoaded(user)) {
+	if (_additional.infoLoaded(participant)) {
 		return true;
 	}
 
@@ -512,16 +513,15 @@ bool AddSpecialBoxController::checkInfoLoaded(
 	const auto channel = _peer->asChannel();
 	_api.request(MTPchannels_GetParticipant(
 		channel->inputChannel,
-		user->inputUser
+		participant->input
 	)).done([=](const MTPchannels_ChannelParticipant &result) {
-		Expects(result.type() == mtpc_channels_channelParticipant);
-
-		const auto &participant = result.c_channels_channelParticipant();
-		channel->owner().processUsers(participant.vusers());
-		_additional.applyParticipant(participant.vparticipant());
+		result.match([&](const MTPDchannels_channelParticipant &data) {
+			channel->owner().processUsers(data.vusers());
+			_additional.applyParticipant(data.vparticipant());
+		});
 		callback();
 	}).fail([=](const MTP::Error &error) {
-		_additional.setExternal(user);
+		_additional.setExternal(participant);
 		callback();
 	}).send();
 	return false;
@@ -732,7 +732,7 @@ void AddSpecialBoxController::showRestricted(
 		user,
 		_additional.adminRights(user).has_value(),
 		currentRights);
-	if (_additional.canRestrictUser(user)) {
+	if (_additional.canRestrictParticipant(user)) {
 		const auto done = crl::guard(this, [=](
 				const MTPChatBannedRights &newRights) {
 			editRestrictedDone(user, newRights);
@@ -749,50 +749,61 @@ void AddSpecialBoxController::showRestricted(
 }
 
 void AddSpecialBoxController::editRestrictedDone(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &rights) {
 	if (_editParticipantBox) {
 		_editParticipantBox->closeBox();
 	}
 
 	const auto date = base::unixtime::now(); // Incorrect, but ignored.
-	if (rights.c_chatBannedRights().vflags().v == 0) {
-		_additional.applyParticipant(MTP_channelParticipant(
-			MTP_int(user->bareId()),
-			MTP_int(date)));
+	if (Data::ChatBannedRightsFlags(rights) == 0) {
+		if (const auto user = participant->asUser()) {
+			_additional.applyParticipant(MTP_channelParticipant(
+				MTP_int(user->bareId()),
+				MTP_int(date)));
+		} else {
+			_additional.setExternal(participant);
+		}
 	} else {
-		const auto kicked = rights.c_chatBannedRights().is_view_messages();
-		const auto alreadyRestrictedBy = _additional.restrictedBy(user);
+		const auto kicked = Data::ChatBannedRightsFlags(rights)
+			& ChatRestriction::f_view_messages;
+		const auto alreadyRestrictedBy = _additional.restrictedBy(
+			participant);
 		_additional.applyParticipant(MTP_channelParticipantBanned(
 			MTP_flags(kicked
 				? MTPDchannelParticipantBanned::Flag::f_left
 				: MTPDchannelParticipantBanned::Flag(0)),
-			MTP_int(user->bareId()),
+			(participant->isUser()
+				? MTP_peerUser(MTP_int(participant->bareId()))
+				: participant->isChat()
+				? MTP_peerChat(MTP_int(participant->bareId()))
+				: MTP_peerChannel(MTP_int(participant->bareId()))),
 			MTP_int(alreadyRestrictedBy
 				? alreadyRestrictedBy->bareId()
-				: user->session().userId()),
+				: participant->session().userId()),
 			MTP_int(date),
 			rights));
 	}
 	if (const auto callback = _bannedDoneCallback) {
-		callback(user, rights);
+		callback(participant, rights);
 	}
 }
 
 void AddSpecialBoxController::kickUser(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		bool sure) {
-	if (!checkInfoLoaded(user, [=] { kickUser(user); })) {
+	if (!checkInfoLoaded(participant, [=] { kickUser(participant); })) {
 		return;
 	}
 
 	const auto kickUserSure = crl::guard(this, [=] {
-		kickUser(user, true);
+		kickUser(participant, true);
 	});
 
 	// Check restrictions.
-	if (_additional.adminRights(user).has_value()
-		|| _additional.isCreator(user)) {
+	const auto user = participant->asUser();
+	if (user && (_additional.adminRights(user).has_value()
+		|| (_additional.isCreator(user)))) {
 		// The user is an admin or creator.
 		if (!_additional.isCreator(user) && _additional.canEditAdmin(user)) {
 			if (!sure) {
@@ -818,14 +829,14 @@ void AddSpecialBoxController::kickUser(
 			: tr::lng_profile_sure_kick_channel)(
 				tr::now,
 				lt_user,
-				user->name);
+				participant->name);
 		_editBox = Ui::show(
 			Box<ConfirmBox>(text, kickUserSure),
 			Ui::LayerOption::KeepOther);
 		return;
 	}
 
-	const auto restrictedRights = _additional.restrictedRights(user);
+	const auto restrictedRights = _additional.restrictedRights(participant);
 	const auto currentRights = restrictedRights
 		? *restrictedRights
 		: MTPChatBannedRights(MTP_chatBannedRights(
@@ -834,21 +845,25 @@ void AddSpecialBoxController::kickUser(
 
 	const auto done = crl::guard(this, [=](
 			const MTPChatBannedRights &newRights) {
-		editRestrictedDone(user, newRights);
+		editRestrictedDone(participant, newRights);
 	});
 	const auto fail = crl::guard(this, [=] {
 		_editBox = nullptr;
 	});
-	const auto callback = SaveRestrictedCallback(_peer, user, done, fail);
+	const auto callback = SaveRestrictedCallback(
+		_peer,
+		participant,
+		done,
+		fail);
 	callback(currentRights, ChannelData::KickedRestrictedRights());
 }
 
-bool AddSpecialBoxController::appendRow(not_null<UserData*> user) {
-	if (delegate()->peerListFindRow(user->id)
-		|| (_excludeSelf && user->isSelf())) {
+bool AddSpecialBoxController::appendRow(not_null<PeerData*> participant) {
+	if (delegate()->peerListFindRow(participant->id)
+		|| (_excludeSelf && participant->isSelf())) {
 		return false;
 	}
-	delegate()->peerListAppendRow(createRow(user));
+	delegate()->peerListAppendRow(createRow(participant));
 	return true;
 }
 
@@ -861,8 +876,8 @@ bool AddSpecialBoxController::prependRow(not_null<UserData*> user) {
 }
 
 std::unique_ptr<PeerListRow> AddSpecialBoxController::createRow(
-		not_null<UserData*> user) const {
-	return std::make_unique<PeerListRow>(user);
+		not_null<PeerData*> participant) const {
+	return std::make_unique<PeerListRow>(participant);
 }
 
 AddSpecialBoxSearchController::AddSpecialBoxSearchController(
diff --git a/Telegram/SourceFiles/boxes/peers/add_participants_box.h b/Telegram/SourceFiles/boxes/peers/add_participants_box.h
index ee626f161..803860601 100644
--- a/Telegram/SourceFiles/boxes/peers/add_participants_box.h
+++ b/Telegram/SourceFiles/boxes/peers/add_participants_box.h
@@ -80,7 +80,7 @@ public:
 		const MTPChatAdminRights &adminRights,
 		const QString &rank)>;
 	using BannedDoneCallback = Fn<void(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &bannedRights)>;
 	AddSpecialBoxController(
 		not_null<PeerData*> peer,
@@ -101,7 +101,7 @@ public:
 
 private:
 	template <typename Callback>
-	bool checkInfoLoaded(not_null<UserData*> user, Callback callback);
+	bool checkInfoLoaded(not_null<PeerData*> participant, Callback callback);
 
 	void prepareChatRows(not_null<ChatData*> chat);
 	void rebuildChatRows(not_null<ChatData*> chat);
@@ -113,12 +113,13 @@ private:
 		const QString &rank);
 	void showRestricted(not_null<UserData*> user, bool sure = false);
 	void editRestrictedDone(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &rights);
-	void kickUser(not_null<UserData*> user, bool sure = false);
-	bool appendRow(not_null<UserData*> user);
+	void kickUser(not_null<PeerData*> participant, bool sure = false);
+	bool appendRow(not_null<PeerData*> participant);
 	bool prependRow(not_null<UserData*> user);
-	std::unique_ptr<PeerListRow> createRow(not_null<UserData*> user) const;
+	std::unique_ptr<PeerListRow> createRow(
+		not_null<PeerData*> participant) const;
 
 	void subscribeToMigration();
 	void migrate(not_null<ChatData*> chat, not_null<ChannelData*> channel);
diff --git a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
index d68fba011..e8c1d55df 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/edit_participant_box.cpp
@@ -612,11 +612,11 @@ void EditRestrictedBox::prepare() {
 	const auto defaultRestrictions = chat
 		? chat->defaultRestrictions()
 		: channel->defaultRestrictions();
-	const auto prepareRights = _oldRights.c_chatBannedRights().vflags().v
+	const auto prepareRights = Data::ChatBannedRightsFlags(_oldRights)
 		? _oldRights
 		: defaultRights();
 	const auto prepareFlags = FixDependentRestrictions(
-		prepareRights.c_chatBannedRights().vflags().v
+		Data::ChatBannedRightsFlags(prepareRights)
 		| defaultRestrictions
 		| ((channel && channel->isPublic())
 			? (Flag::f_change_info | Flag::f_pin_messages)
@@ -647,7 +647,7 @@ void EditRestrictedBox::prepare() {
 		disabledMessages);
 	addControl(std::move(checkboxes), QMargins());
 
-	_until = prepareRights.c_chatBannedRights().vuntil_date().v;
+	_until = Data::ChatBannedRightsUntilDate(prepareRights);
 	addControl(object_ptr<Ui::BoxContentDivider>(this), st::rightsUntilMargin);
 	addControl(
 		object_ptr<Ui::FlatLabel>(
@@ -767,7 +767,7 @@ void EditRestrictedBox::createUntilVariants() {
 		}
 	};
 	auto addCurrentVariant = [&](TimeId from, TimeId to) {
-		auto oldUntil = _oldRights.c_chatBannedRights().vuntil_date().v;
+		auto oldUntil = Data::ChatBannedRightsUntilDate(_oldRights);
 		if (oldUntil < _until) {
 			addCustomVariant(oldUntil, from, to);
 		}
diff --git a/Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp b/Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp
index 6ec9063d3..f963b439f 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp
+++ b/Telegram/SourceFiles/boxes/peers/edit_participants_box.cpp
@@ -146,18 +146,18 @@ void SaveChannelAdmin(
 
 void SaveChannelRestriction(
 		not_null<ChannelData*> channel,
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &oldRights,
 		const MTPChatBannedRights &newRights,
 		Fn<void()> onDone,
 		Fn<void()> onFail) {
 	channel->session().api().request(MTPchannels_EditBanned(
 		channel->inputChannel,
-		user->inputUser,
+		participant->input,
 		newRights
 	)).done([=](const MTPUpdates &result) {
 		channel->session().api().applyUpdates(result);
-		channel->applyEditBanned(user, oldRights, newRights);
+		channel->applyEditBanned(participant, oldRights, newRights);
 		if (onDone) {
 			onDone();
 		}
@@ -243,7 +243,7 @@ Fn<void(
 	const MTPChatBannedRights &oldRights,
 	const MTPChatBannedRights &newRights)> SaveRestrictedCallback(
 		not_null<PeerData*> peer,
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		Fn<void(const MTPChatBannedRights &newRights)> onDone,
 		Fn<void()> onFail) {
 	return [=](
@@ -253,19 +253,21 @@ Fn<void(
 		const auto saveForChannel = [=](not_null<ChannelData*> channel) {
 			SaveChannelRestriction(
 				channel,
-				user,
+				participant,
 				oldRights,
 				newRights,
 				done,
 				onFail);
 		};
 		if (const auto chat = peer->asChatNotMigrated()) {
-			const auto flags = newRights.match([](
-					const MTPDchatBannedRights &data) {
-				return data.vflags().v;
-			});
-			if (flags & MTPDchatBannedRights::Flag::f_view_messages) {
-				SaveChatParticipantKick(chat, user, done, onFail);
+			const auto flags = Data::ChatBannedRightsFlags(newRights);
+			if (participant->isUser()
+				&& (flags & MTPDchatBannedRights::Flag::f_view_messages)) {
+				SaveChatParticipantKick(
+					chat,
+					participant->asUser(),
+					done,
+					onFail);
 			} else if (!flags) {
 				done();
 			} else {
@@ -313,9 +315,9 @@ ParticipantsAdditionalData::ParticipantsAdditionalData(
 }
 
 bool ParticipantsAdditionalData::infoLoaded(
-		not_null<UserData*> user) const {
+		not_null<PeerData*> participant) const {
 	return _peer->isChat()
-		|| (_infoNotLoaded.find(user) == end(_infoNotLoaded));
+		|| (_infoNotLoaded.find(participant) == end(_infoNotLoaded));
 }
 
 bool ParticipantsAdditionalData::canEditAdmin(
@@ -342,9 +344,10 @@ bool ParticipantsAdditionalData::canAddOrEditAdmin(
 	Unexpected("Peer in ParticipantsAdditionalData::canAddOrEditAdmin.");
 }
 
-bool ParticipantsAdditionalData::canRestrictUser(
-		not_null<UserData*> user) const {
-	if (!canEditAdmin(user) || user->isSelf()) {
+bool ParticipantsAdditionalData::canRestrictParticipant(
+		not_null<PeerData*> participant) const {
+	const auto user = participant->asUser();
+	if (user && (!canEditAdmin(user) || user->isSelf())) {
 		return false;
 	} else if (const auto chat = _peer->asChat()) {
 		return chat->canBanMembers();
@@ -354,12 +357,14 @@ bool ParticipantsAdditionalData::canRestrictUser(
 	Unexpected("Peer in ParticipantsAdditionalData::canRestrictUser.");
 }
 
-bool ParticipantsAdditionalData::canRemoveUser(
-		not_null<UserData*> user) const {
-	if (canRestrictUser(user)) {
+bool ParticipantsAdditionalData::canRemoveParticipant(
+		not_null<PeerData*> participant) const {
+	const auto user = participant->asUser();
+	if (canRestrictParticipant(participant)) {
 		return true;
 	} else if (const auto chat = _peer->asChat()) {
-		return !user->isSelf()
+		return user
+			&& !user->isSelf()
 			&& chat->invitedByMe.contains(user)
 			&& (chat->amCreator() || !_admins.contains(user));
 	}
@@ -388,12 +393,12 @@ QString ParticipantsAdditionalData::adminRank(
 }
 
 auto ParticipantsAdditionalData::restrictedRights(
-	not_null<UserData*> user) const
+	not_null<PeerData*> participant) const
 -> std::optional<MTPChatBannedRights> {
 	if (_peer->isChat()) {
 		return std::nullopt;
 	}
-	const auto i = _restrictedRights.find(user);
+	const auto i = _restrictedRights.find(participant);
 	return (i != end(_restrictedRights))
 		? std::make_optional(i->second)
 		: std::nullopt;
@@ -404,16 +409,18 @@ bool ParticipantsAdditionalData::isCreator(not_null<UserData*> user) const {
 }
 
 bool ParticipantsAdditionalData::isExternal(
-		not_null<UserData*> user) const {
+		not_null<PeerData*> participant) const {
 	return _peer->isChat()
-		? !_members.contains(user)
-		: _external.find(user) != end(_external);
+		? (participant->isUser()
+			&& !_members.contains(participant->asUser()))
+		: _external.find(participant) != end(_external);
 }
 
-bool ParticipantsAdditionalData::isKicked(not_null<UserData*> user) const {
+bool ParticipantsAdditionalData::isKicked(
+		not_null<PeerData*> participant) const {
 	return _peer->isChat()
 		? false
-		: _kicked.find(user) != end(_kicked);
+		: _kicked.find(participant) != end(_kicked);
 }
 
 UserData *ParticipantsAdditionalData::adminPromotedBy(
@@ -426,29 +433,41 @@ UserData *ParticipantsAdditionalData::adminPromotedBy(
 }
 
 UserData *ParticipantsAdditionalData::restrictedBy(
-		not_null<UserData*> user) const {
+		not_null<PeerData*> participant) const {
 	if (_peer->isChat()) {
 		return nullptr;
 	}
-	const auto i = _restrictedBy.find(user);
+	const auto i = _restrictedBy.find(participant);
 	return (i != end(_restrictedBy)) ? i->second.get() : nullptr;
 }
 
-void ParticipantsAdditionalData::setExternal(not_null<UserData*> user) {
-	_infoNotLoaded.erase(user);
-	_external.emplace(user);
+void ParticipantsAdditionalData::setExternal(
+		not_null<PeerData*> participant) {
+	if (const auto user = participant->asUser()) {
+		_adminRights.erase(user);
+		_adminCanEdit.erase(user);
+		_adminPromotedBy.erase(user);
+		_admins.erase(user);
+	}
+	_restrictedRights.erase(participant);
+	_kicked.erase(participant);
+	_restrictedBy.erase(participant);
+	_infoNotLoaded.erase(participant);
+	_external.emplace(participant);
 }
 
-void ParticipantsAdditionalData::checkForLoaded(not_null<UserData*> user) {
+void ParticipantsAdditionalData::checkForLoaded(
+		not_null<PeerData*> participant) {
 	const auto contains = [](const auto &map, const auto &value) {
 		return map.find(value) != map.end();
 	};
-	if (_creator != user
-		&& !contains(_adminRights, user)
-		&& !contains(_restrictedRights, user)
-		&& !contains(_external, user)
-		&& !contains(_kicked, user)) {
-		_infoNotLoaded.emplace(user);
+	const auto user = participant->asUser();
+	if (!(user && _creator == user)
+		&& !(user && contains(_adminRights, user))
+		&& !contains(_restrictedRights, participant)
+		&& !contains(_external, participant)
+		&& !contains(_kicked, participant)) {
+		_infoNotLoaded.emplace(participant);
 	}
 }
 
@@ -510,15 +529,15 @@ void ParticipantsAdditionalData::fillFromChannel(
 	}
 }
 
-UserData *ParticipantsAdditionalData::applyParticipant(
+PeerData *ParticipantsAdditionalData::applyParticipant(
 		const MTPChannelParticipant &data) {
 	return applyParticipant(data, _role);
 }
 
-UserData *ParticipantsAdditionalData::applyParticipant(
+PeerData *ParticipantsAdditionalData::applyParticipant(
 		const MTPChannelParticipant &data,
 		Role overrideRole) {
-	const auto logBad = [&]() -> UserData* {
+	const auto logBad = [&]() -> PeerData* {
 		LOG(("API Error: Bad participant type %1 got "
 			"while requesting for participants, role: %2"
 			).arg(data.type()
@@ -526,27 +545,28 @@ UserData *ParticipantsAdditionalData::applyParticipant(
 		return nullptr;
 	};
 
-	return data.match([&](const MTPDchannelParticipantCreator &data) {
+	return data.match([&](
+			const MTPDchannelParticipantCreator &data) -> PeerData* {
 		if (overrideRole != Role::Profile
 			&& overrideRole != Role::Members
 			&& overrideRole != Role::Admins) {
 			return logBad();
 		}
 		return applyCreator(data);
-	}, [&](const MTPDchannelParticipantAdmin &data) {
+	}, [&](const MTPDchannelParticipantAdmin &data) -> PeerData* {
 		if (overrideRole != Role::Profile
 			&& overrideRole != Role::Members
 			&& overrideRole != Role::Admins) {
 			return logBad();
 		}
 		return applyAdmin(data);
-	}, [&](const MTPDchannelParticipantSelf &data) {
+	}, [&](const MTPDchannelParticipantSelf &data) -> PeerData* {
 		if (overrideRole != Role::Profile
 			&& overrideRole != Role::Members) {
 			return logBad();
 		}
 		return applyRegular(data.vuser_id());
-	}, [&](const MTPDchannelParticipant &data) {
+	}, [&](const MTPDchannelParticipant &data) -> PeerData* {
 		if (overrideRole != Role::Profile
 			&& overrideRole != Role::Members) {
 			return logBad();
@@ -645,32 +665,35 @@ UserData *ParticipantsAdditionalData::applyRegular(MTPint userId) {
 	return user;
 }
 
-UserData *ParticipantsAdditionalData::applyBanned(
+PeerData *ParticipantsAdditionalData::applyBanned(
 		const MTPDchannelParticipantBanned &data) {
-	const auto user = _peer->owner().userLoaded(data.vuser_id().v);
-	if (!user) {
+	const auto participant = _peer->owner().peerLoaded(
+		peerFromMTP(data.vpeer()));
+	if (!participant) {
 		return nullptr;
 	}
 
-	_infoNotLoaded.erase(user);
-	_adminRights.erase(user);
-	_adminCanEdit.erase(user);
-	_adminPromotedBy.erase(user);
-	if (data.is_left()) {
-		_kicked.emplace(user);
-	} else {
-		_kicked.erase(user);
+	_infoNotLoaded.erase(participant);
+	if (const auto user = participant->asUser()) {
+		_adminRights.erase(user);
+		_adminCanEdit.erase(user);
+		_adminPromotedBy.erase(user);
 	}
-	_restrictedRights[user] = data.vbanned_rights();
+	if (data.is_left()) {
+		_kicked.emplace(participant);
+	} else {
+		_kicked.erase(participant);
+	}
+	_restrictedRights[participant] = data.vbanned_rights();
 	if (const auto by = _peer->owner().userLoaded(data.vkicked_by().v)) {
-		const auto i = _restrictedBy.find(user);
+		const auto i = _restrictedBy.find(participant);
 		if (i == _restrictedBy.end()) {
-			_restrictedBy.emplace(user, by);
+			_restrictedBy.emplace(participant, by);
 		} else {
 			i->second = by;
 		}
 	}
-	return user;
+	return participant;
 }
 
 void ParticipantsAdditionalData::migrate(
@@ -922,9 +945,9 @@ void ParticipantsBoxController::addNewItem() {
 		editAdminDone(user, rights, rank);
 	});
 	const auto restrictedDone = crl::guard(this, [=](
-			not_null<UserData*> user,
+			not_null<PeerData*> participant,
 			const MTPChatBannedRights &rights) {
-		editRestrictedDone(user, rights);
+		editRestrictedDone(participant, rights);
 	});
 	const auto initBox = [](not_null<PeerListBox*> box) {
 		box->addButton(tr::lng_cancel(), [=] { box->closeBox(); });
@@ -1316,8 +1339,9 @@ void ParticipantsBoxController::loadMoreRows() {
 				int availableCount,
 				const QVector<MTPChannelParticipant> &list) {
 			for (const auto &data : list) {
-				if (const auto user = _additional.applyParticipant(data)) {
-					appendRow(user);
+				if (const auto participant = _additional.applyParticipant(
+						data)) {
+					appendRow(participant);
 				}
 			}
 			if (const auto size = list.size()) {
@@ -1398,17 +1422,18 @@ bool ParticipantsBoxController::feedMegagroupLastParticipants() {
 }
 
 void ParticipantsBoxController::rowClicked(not_null<PeerListRow*> row) {
-	Expects(row->peer()->isUser());
-
-	const auto user = row->peer()->asUser();
+	const auto participant = row->peer();
+	const auto user = participant->asUser();
 	if (_role == Role::Admins) {
+		Assert(user != nullptr);
 		showAdmin(user);
 	} else if (_role == Role::Restricted
-		&& (_peer->isChat() || _peer->isMegagroup())) {
+		&& (_peer->isChat() || _peer->isMegagroup())
+		&& user) {
 		showRestricted(user);
 	} else {
 		Assert(_navigation != nullptr);
-		_navigation->showPeerInfo(user);
+		_navigation->showPeerInfo(participant);
 	}
 }
 
@@ -1433,28 +1458,30 @@ base::unique_qptr<Ui::PopupMenu> ParticipantsBoxController::rowContextMenu(
 
 	const auto chat = _peer->asChat();
 	const auto channel = _peer->asChannel();
-	const auto user = row->peer()->asUser();
+	const auto participant = row->peer();
+	const auto user = participant->asUser();
 	auto result = base::make_unique_q<Ui::PopupMenu>(parent);
 	if (_navigation) {
 		result->addAction(
 			tr::lng_context_view_profile(tr::now),
-			crl::guard(this, [=] { _navigation->showPeerInfo(user); }));
+			crl::guard(this, [=] {
+				_navigation->showPeerInfo(participant); }));
 	}
 	if (_role == Role::Kicked) {
 		if (_peer->isMegagroup()
-			&& _additional.canRestrictUser(user)) {
-			if (channel->canAddMembers()) {
+			&& _additional.canRestrictParticipant(participant)) {
+			if (user && channel->canAddMembers()) {
 				result->addAction(
 					tr::lng_context_add_to_group(tr::now),
 					crl::guard(this, [=] { unkickMember(user); }));
 			}
 			result->addAction(
 				tr::lng_profile_delete_removed(tr::now),
-				crl::guard(this, [=] { removeKickedWithRow(user); }));
+				crl::guard(this, [=] { removeKickedWithRow(participant); }));
 		}
 		return result;
 	}
-	if (_additional.canAddOrEditAdmin(user)) {
+	if (user && _additional.canAddOrEditAdmin(user)) {
 		const auto isAdmin = _additional.isCreator(user)
 			|| _additional.adminRights(user).has_value();
 		result->addAction(
@@ -1463,7 +1490,7 @@ base::unique_qptr<Ui::PopupMenu> ParticipantsBoxController::rowContextMenu(
 				: tr::lng_context_promote_admin)(tr::now),
 			crl::guard(this, [=] { showAdmin(user); }));
 	}
-	if (_additional.canRestrictUser(user)) {
+	if (_additional.canRestrictParticipant(participant)) {
 		const auto canRestrictWithoutKick = [&] {
 			if (const auto chat = _peer->asChat()) {
 				return chat->amCreator();
@@ -1476,8 +1503,8 @@ base::unique_qptr<Ui::PopupMenu> ParticipantsBoxController::rowContextMenu(
 				crl::guard(this, [=] { showRestricted(user); }));
 		}
 	}
-	if (_additional.canRemoveUser(user)) {
-		if (!_additional.isKicked(user)) {
+	if (_additional.canRemoveParticipant(participant)) {
+		if (!_additional.isKicked(participant)) {
 			const auto isGroup = _peer->isChat() || _peer->isMegagroup();
 			result->addAction(
 				(isGroup
@@ -1580,7 +1607,7 @@ void ParticipantsBoxController::showRestricted(not_null<UserData*> user) {
 		currentRights);
 	const auto chat = _peer->asChat();
 	const auto channel = _peer->asChannel();
-	if (_additional.canRestrictUser(user)) {
+	if (_additional.canRestrictParticipant(user)) {
 		const auto done = crl::guard(this, [=](
 				const MTPChatBannedRights &newRights) {
 			editRestrictedDone(user, newRights);
@@ -1597,29 +1624,40 @@ void ParticipantsBoxController::showRestricted(not_null<UserData*> user) {
 }
 
 void ParticipantsBoxController::editRestrictedDone(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &rights) {
 	_addBox = nullptr;
 	if (_editParticipantBox) {
 		_editParticipantBox->closeBox();
 	}
 
+	const auto user = participant->asUser();
 	const auto date = base::unixtime::now(); // Incorrect, but ignored.
-	if (rights.c_chatBannedRights().vflags().v == 0) {
-		_additional.applyParticipant(MTP_channelParticipant(
-			MTP_int(user->bareId()),
-			MTP_int(date)));
+	if (Data::ChatBannedRightsFlags(rights) == 0) {
+		if (user) {
+			_additional.applyParticipant(MTP_channelParticipant(
+				MTP_int(user->bareId()),
+				MTP_int(date)));
+		} else {
+			_additional.setExternal(participant);
+		}
 		if (_role == Role::Kicked || _role == Role::Restricted) {
-			removeRow(user);
+			removeRow(participant);
 		}
 	} else {
-		const auto kicked = rights.c_chatBannedRights().is_view_messages();
-		const auto alreadyRestrictedBy = _additional.restrictedBy(user);
+		const auto kicked = Data::ChatBannedRightsFlags(rights)
+			& ChatRestriction::f_view_messages;
+		const auto alreadyRestrictedBy = _additional.restrictedBy(
+			participant);
 		_additional.applyParticipant(MTP_channelParticipantBanned(
 			MTP_flags(kicked
 				? MTPDchannelParticipantBanned::Flag::f_left
 				: MTPDchannelParticipantBanned::Flag(0)),
-			MTP_int(user->bareId()),
+			(participant->isUser()
+				? MTP_peerUser(MTP_int(participant->bareId()))
+				: participant->isChat()
+				? MTP_peerChat(MTP_int(participant->bareId()))
+				: MTP_peerChannel(MTP_int(participant->bareId()))),
 			MTP_int(alreadyRestrictedBy
 				? alreadyRestrictedBy->bareId()
 				: user->session().userId()),
@@ -1647,18 +1685,19 @@ void ParticipantsBoxController::editRestrictedDone(
 	delegate()->peerListRefreshRows();
 }
 
-void ParticipantsBoxController::kickMember(not_null<UserData*> user) {
+void ParticipantsBoxController::kickMember(not_null<PeerData*> participant) {
+	const auto user = participant->asUser();
 	const auto text = ((_peer->isChat() || _peer->isMegagroup())
 		? tr::lng_profile_sure_kick
 		: tr::lng_profile_sure_kick_channel)(
 			tr::now,
 			lt_user,
-			user->firstName);
+			user ? user->firstName : participant->name);
 	_editBox = Ui::show(
 		Box<ConfirmBox>(
 			text,
 			tr::lng_box_remove(tr::now),
-			crl::guard(this, [=] { kickMemberSure(user); })),
+			crl::guard(this, [=] { kickMemberSure(participant); })),
 		Ui::LayerOption::KeepOther);
 }
 
@@ -1671,25 +1710,26 @@ void ParticipantsBoxController::unkickMember(not_null<UserData*> user) {
 	_peer->session().api().addChatParticipants(_peer, { 1, user });
 }
 
-void ParticipantsBoxController::kickMemberSure(not_null<UserData*> user) {
+void ParticipantsBoxController::kickMemberSure(
+		not_null<PeerData*> participant) {
 	_editBox = nullptr;
 
-	const auto restrictedRights = _additional.restrictedRights(user);
+	const auto restrictedRights = _additional.restrictedRights(participant);
 	const auto currentRights = restrictedRights
 		? *restrictedRights
 		: MTPChatBannedRights(MTP_chatBannedRights(
 			MTP_flags(0),
 			MTP_int(0)));
 
-	if (const auto row = delegate()->peerListFindRow(user->id)) {
+	if (const auto row = delegate()->peerListFindRow(participant->id)) {
 		delegate()->peerListRemoveRow(row);
 		delegate()->peerListRefreshRows();
 	}
 	auto &session = _peer->session();
 	if (const auto chat = _peer->asChat()) {
-		session.api().kickParticipant(chat, user);
+		session.api().kickParticipant(chat, participant);
 	} else if (const auto channel = _peer->asChannel()) {
-		session.api().kickParticipant(channel, user, currentRights);
+		session.api().kickParticipant(channel, participant, currentRights);
 	}
 }
 
@@ -1730,36 +1770,37 @@ void ParticipantsBoxController::removeAdminSure(not_null<UserData*> user) {
 }
 
 void ParticipantsBoxController::removeKickedWithRow(
-		not_null<UserData*> user) {
-	if (const auto row = delegate()->peerListFindRow(user->id)) {
-		removeKicked(row, user);
+		not_null<PeerData*> participant) {
+	if (const auto row = delegate()->peerListFindRow(participant->id)) {
+		removeKicked(row, participant);
 	} else {
-		removeKicked(user);
+		removeKicked(participant);
 	}
 }
-void ParticipantsBoxController::removeKicked(not_null<UserData*> user) {
+void ParticipantsBoxController::removeKicked(
+		not_null<PeerData*> participant) {
 	if (const auto channel = _peer->asChannel()) {
-		channel->session().api().unblockParticipant(channel, user);
+		channel->session().api().unblockParticipant(channel, participant);
 	}
 }
 
 void ParticipantsBoxController::removeKicked(
 		not_null<PeerListRow*> row,
-		not_null<UserData*> user) {
+		not_null<PeerData*> participant) {
 	delegate()->peerListRemoveRow(row);
 	if (_role != Role::Kicked
 		&& !delegate()->peerListFullRowsCount()) {
 		setDescriptionText(tr::lng_blocked_list_not_found(tr::now));
 	}
 	delegate()->peerListRefreshRows();
-	removeKicked(user);
+	removeKicked(participant);
 }
 
-bool ParticipantsBoxController::appendRow(not_null<UserData*> user) {
-	if (delegate()->peerListFindRow(user->id)) {
-		recomputeTypeFor(user);
+bool ParticipantsBoxController::appendRow(not_null<PeerData*> participant) {
+	if (delegate()->peerListFindRow(participant->id)) {
+		recomputeTypeFor(participant);
 		return false;
-	} else if (auto row = createRow(user)) {
+	} else if (auto row = createRow(participant)) {
 		delegate()->peerListAppendRow(std::move(row));
 		if (_role != Role::Kicked) {
 			setDescriptionText(QString());
@@ -1788,8 +1829,8 @@ bool ParticipantsBoxController::prependRow(not_null<UserData*> user) {
 	return false;
 }
 
-bool ParticipantsBoxController::removeRow(not_null<UserData*> user) {
-	if (auto row = delegate()->peerListFindRow(user->id)) {
+bool ParticipantsBoxController::removeRow(not_null<PeerData*> participant) {
+	if (auto row = delegate()->peerListFindRow(participant->id)) {
 		if (_role == Role::Admins) {
 			// Perhaps we are removing an admin from search results.
 			row->setCustomStatus(tr::lng_channel_admin_status_not_admin(tr::now));
@@ -1807,24 +1848,28 @@ bool ParticipantsBoxController::removeRow(not_null<UserData*> user) {
 }
 
 std::unique_ptr<PeerListRow> ParticipantsBoxController::createRow(
-		not_null<UserData*> user) const {
+		not_null<PeerData*> participant) const {
+	const auto user = participant->asUser();
 	if (_role == Role::Profile) {
+		Assert(user != nullptr);
 		return std::make_unique<Row>(user, computeType(user));
 	}
 	const auto chat = _peer->asChat();
 	const auto channel = _peer->asChannel();
-	auto row = std::make_unique<PeerListRowWithLink>(user);
+	auto row = std::make_unique<PeerListRowWithLink>(participant);
 	refreshCustomStatus(row.get());
 	if (_role == Role::Admins
+		&& user
 		&& !_additional.isCreator(user)
 		&& _additional.adminRights(user).has_value()
 		&& _additional.canEditAdmin(user)) {
 		row->setActionLink(tr::lng_profile_kick(tr::now));
 	} else if (_role == Role::Kicked || _role == Role::Restricted) {
-		if (_additional.canRestrictUser(user)) {
+		if (_additional.canRestrictParticipant(participant)) {
 			row->setActionLink(tr::lng_profile_delete_removed(tr::now));
 		}
 	} else if (_role == Role::Members) {
+		Assert(user != nullptr);
 		if ((chat ? chat->canBanMembers() : channel->canBanMembers())
 			&& !_additional.isCreator(user)
 			&& (!_additional.adminRights(user)
@@ -1842,31 +1887,34 @@ std::unique_ptr<PeerListRow> ParticipantsBoxController::createRow(
 }
 
 auto ParticipantsBoxController::computeType(
-		not_null<UserData*> user) const -> Type {
+		not_null<PeerData*> participant) const -> Type {
+	const auto user = participant->asUser();
 	auto result = Type();
-	result.rights = _additional.isCreator(user)
+	result.rights = (user && _additional.isCreator(user))
 		? Rights::Creator
-		: _additional.adminRights(user).has_value()
+		: (user && _additional.adminRights(user).has_value())
 		? Rights::Admin
 		: Rights::Normal;
-	result.canRemove = _additional.canRemoveUser(user);
+	result.canRemove = _additional.canRemoveParticipant(participant);
 	return result;
 }
 
 void ParticipantsBoxController::recomputeTypeFor(
-		not_null<UserData*> user) {
+		not_null<PeerData*> participant) {
 	if (_role != Role::Profile) {
 		return;
 	}
-	if (const auto row = delegate()->peerListFindRow(user->id)) {
-		static_cast<Row*>(row)->setType(computeType(user));
+	if (const auto row = delegate()->peerListFindRow(participant->id)) {
+		static_cast<Row*>(row)->setType(computeType(participant));
 	}
 }
 
 void ParticipantsBoxController::refreshCustomStatus(
 		not_null<PeerListRow*> row) const {
-	const auto user = row->peer()->asUser();
+	const auto participant = row->peer();
+	const auto user = participant->asUser();
 	if (_role == Role::Admins) {
+		Assert(user != nullptr);
 		if (const auto by = _additional.adminPromotedBy(user)) {
 			row->setCustomStatus(tr::lng_channel_admin_status_promoted_by(
 				tr::now,
@@ -1882,7 +1930,7 @@ void ParticipantsBoxController::refreshCustomStatus(
 			}
 		}
 	} else if (_role == Role::Kicked || _role == Role::Restricted) {
-		const auto by = _additional.restrictedBy(user);
+		const auto by = _additional.restrictedBy(participant);
 		row->setCustomStatus((_role == Role::Kicked
 			? tr::lng_channel_banned_status_removed_by
 			: tr::lng_channel_banned_status_restricted_by)(
diff --git a/Telegram/SourceFiles/boxes/peers/edit_participants_box.h b/Telegram/SourceFiles/boxes/peers/edit_participants_box.h
index cff017b31..1a1be5122 100644
--- a/Telegram/SourceFiles/boxes/peers/edit_participants_box.h
+++ b/Telegram/SourceFiles/boxes/peers/edit_participants_box.h
@@ -33,7 +33,7 @@ Fn<void(
 	const MTPChatBannedRights &oldRights,
 	const MTPChatBannedRights &newRights)> SaveRestrictedCallback(
 		not_null<PeerData*> peer,
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		Fn<void(const MTPChatBannedRights &newRights)> onDone,
 		Fn<void()> onFail);
 
@@ -77,29 +77,31 @@ public:
 
 	ParticipantsAdditionalData(not_null<PeerData*> peer, Role role);
 
-	UserData *applyParticipant(const MTPChannelParticipant &data);
-	UserData *applyParticipant(
+	PeerData *applyParticipant(const MTPChannelParticipant &data);
+	PeerData *applyParticipant(
 		const MTPChannelParticipant &data,
 		Role overrideRole);
-	void setExternal(not_null<UserData*> user);
-	void checkForLoaded(not_null<UserData*> user);
+	void setExternal(not_null<PeerData*> participant);
+	void checkForLoaded(not_null<PeerData*> participant);
 	void fillFromPeer();
 
-	[[nodiscard]] bool infoLoaded(not_null<UserData*> user) const;
+	[[nodiscard]] bool infoLoaded(not_null<PeerData*> participant) const;
 	[[nodiscard]] bool canEditAdmin(not_null<UserData*> user) const;
 	[[nodiscard]] bool canAddOrEditAdmin(not_null<UserData*> user) const;
-	[[nodiscard]] bool canRestrictUser(not_null<UserData*> user) const;
-	[[nodiscard]] bool canRemoveUser(not_null<UserData*> user) const;
+	[[nodiscard]] bool canRestrictParticipant(
+		not_null<PeerData*> participant) const;
+	[[nodiscard]] bool canRemoveParticipant(
+		not_null<PeerData*> participant) const;
 	[[nodiscard]] std::optional<MTPChatAdminRights> adminRights(
 		not_null<UserData*> user) const;
 	QString adminRank(not_null<UserData*> user) const;
 	[[nodiscard]] std::optional<MTPChatBannedRights> restrictedRights(
-		not_null<UserData*> user) const;
+		not_null<PeerData*> participant) const;
 	[[nodiscard]] bool isCreator(not_null<UserData*> user) const;
-	[[nodiscard]] bool isExternal(not_null<UserData*> user) const;
-	[[nodiscard]] bool isKicked(not_null<UserData*> user) const;
+	[[nodiscard]] bool isExternal(not_null<PeerData*> participant) const;
+	[[nodiscard]] bool isKicked(not_null<PeerData*> participant) const;
 	[[nodiscard]] UserData *adminPromotedBy(not_null<UserData*> user) const;
-	[[nodiscard]] UserData *restrictedBy(not_null<UserData*> user) const;
+	[[nodiscard]] UserData *restrictedBy(not_null<PeerData*> participant) const;
 
 	void migrate(not_null<ChatData*> chat, not_null<ChannelData*> channel);
 
@@ -107,7 +109,7 @@ private:
 	UserData *applyCreator(const MTPDchannelParticipantCreator &data);
 	UserData *applyAdmin(const MTPDchannelParticipantAdmin &data);
 	UserData *applyRegular(MTPint userId);
-	UserData *applyBanned(const MTPDchannelParticipantBanned &data);
+	PeerData *applyBanned(const MTPDchannelParticipantBanned &data);
 	void fillFromChat(not_null<ChatData*> chat);
 	void fillFromChannel(not_null<ChannelData*> channel);
 
@@ -124,11 +126,11 @@ private:
 	base::flat_map<not_null<UserData*>, QString> _adminRanks;
 	base::flat_set<not_null<UserData*>> _adminCanEdit;
 	base::flat_map<not_null<UserData*>, not_null<UserData*>> _adminPromotedBy;
-	std::map<not_null<UserData*>, MTPChatBannedRights> _restrictedRights;
-	std::set<not_null<UserData*>> _kicked;
-	std::map<not_null<UserData*>, not_null<UserData*>> _restrictedBy;
-	std::set<not_null<UserData*>> _external;
-	std::set<not_null<UserData*>> _infoNotLoaded;
+	std::map<not_null<PeerData*>, MTPChatBannedRights> _restrictedRights;
+	std::set<not_null<PeerData*>> _kicked;
+	std::map<not_null<PeerData*>, not_null<UserData*>> _restrictedBy;
+	std::set<not_null<PeerData*>> _external;
+	std::set<not_null<PeerData*>> _infoNotLoaded;
 
 };
 
@@ -181,7 +183,7 @@ protected:
 		Role role);
 
 	virtual std::unique_ptr<PeerListRow> createRow(
-		not_null<UserData*> user) const;
+		not_null<PeerData*> participant) const;
 
 private:
 	using Row = Info::Profile::MemberListRow;
@@ -223,23 +225,25 @@ private:
 		const QString &rank);
 	void showRestricted(not_null<UserData*> user);
 	void editRestrictedDone(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &rights);
-	void removeKicked(not_null<PeerListRow*> row, not_null<UserData*> user);
-	void removeKickedWithRow(not_null<UserData*> user);
-	void removeKicked(not_null<UserData*> user);
-	void kickMember(not_null<UserData*> user);
-	void kickMemberSure(not_null<UserData*> user);
+	void removeKicked(
+		not_null<PeerListRow*> row,
+		not_null<PeerData*> participant);
+	void removeKickedWithRow(not_null<PeerData*> participant);
+	void removeKicked(not_null<PeerData*> participant);
+	void kickMember(not_null<PeerData*> participant);
+	void kickMemberSure(not_null<PeerData*> participant);
 	void unkickMember(not_null<UserData*> user);
 	void removeAdmin(not_null<UserData*> user);
 	void removeAdminSure(not_null<UserData*> user);
-	bool appendRow(not_null<UserData*> user);
+	bool appendRow(not_null<PeerData*> participant);
 	bool prependRow(not_null<UserData*> user);
-	bool removeRow(not_null<UserData*> user);
+	bool removeRow(not_null<PeerData*> participant);
 	void refreshCustomStatus(not_null<PeerListRow*> row) const;
 	bool feedMegagroupLastParticipants();
-	Type computeType(not_null<UserData*> user) const;
-	void recomputeTypeFor(not_null<UserData*> user);
+	Type computeType(not_null<PeerData*> participant) const;
+	void recomputeTypeFor(not_null<PeerData*> participant);
 
 	void subscribeToMigration();
 	void migrate(not_null<ChatData*> chat, not_null<ChannelData*> channel);
diff --git a/Telegram/SourceFiles/calls/calls_group_call.cpp b/Telegram/SourceFiles/calls/calls_group_call.cpp
index 380602c71..176d68f6a 100644
--- a/Telegram/SourceFiles/calls/calls_group_call.cpp
+++ b/Telegram/SourceFiles/calls/calls_group_call.cpp
@@ -1144,7 +1144,8 @@ void GroupCall::broadcastPartStart(std::shared_ptr<LoadPartTask> task) {
 			rejoin();
 			return;
 		}
-		const auto status = MTP::IsFloodError(error)
+		const auto status = (MTP::IsFloodError(error)
+			|| error.type() == u"TIME_TOO_BIG"_q)
 			? Status::NotReady
 			: Status::ResyncNeeded;
 		finish({
diff --git a/Telegram/SourceFiles/calls/calls_group_panel.cpp b/Telegram/SourceFiles/calls/calls_group_panel.cpp
index b0994d1c6..b0a2ee7cf 100644
--- a/Telegram/SourceFiles/calls/calls_group_panel.cpp
+++ b/Telegram/SourceFiles/calls/calls_group_panel.cpp
@@ -82,7 +82,7 @@ private:
 	[[nodiscard]] bool isAlreadyIn(not_null<UserData*> user) const;
 
 	std::unique_ptr<PeerListRow> createRow(
-		not_null<UserData*> user) const override;
+		not_null<PeerData*> participant) const override;
 
 	not_null<PeerData*> _peer;
 	const base::flat_set<not_null<UserData*>> _alreadyIn;
@@ -190,8 +190,9 @@ bool InviteController::isAlreadyIn(not_null<UserData*> user) const {
 }
 
 std::unique_ptr<PeerListRow> InviteController::createRow(
-		not_null<UserData*> user) const {
-	if (user->isSelf() || user->isBot()) {
+		not_null<PeerData*> participant) const {
+	const auto user = participant->asUser();
+	if (!user || user->isSelf() || user->isBot()) {
 		return nullptr;
 	}
 	auto result = std::make_unique<PeerListRow>(user);
diff --git a/Telegram/SourceFiles/data/data_channel.cpp b/Telegram/SourceFiles/data/data_channel.cpp
index 84f607747..70f90494f 100644
--- a/Telegram/SourceFiles/data/data_channel.cpp
+++ b/Telegram/SourceFiles/data/data_channel.cpp
@@ -267,11 +267,17 @@ void ChannelData::applyEditAdmin(
 	session().changes().peerUpdated(this, UpdateFlag::Admins);
 }
 
-void ChannelData::applyEditBanned(not_null<UserData*> user, const MTPChatBannedRights &oldRights, const MTPChatBannedRights &newRights) {
+void ChannelData::applyEditBanned(
+		not_null<PeerData*> participant,
+		const MTPChatBannedRights &oldRights,
+		const MTPChatBannedRights &newRights) {
 	auto flags = UpdateFlag::BannedUsers | UpdateFlag::None;
-	auto isKicked = (newRights.c_chatBannedRights().vflags().v & MTPDchatBannedRights::Flag::f_view_messages);
-	auto isRestricted = !isKicked && (newRights.c_chatBannedRights().vflags().v != 0);
-	if (mgInfo) {
+	auto isKicked = Data::ChatBannedRightsFlags(newRights)
+		& ChatRestriction::f_view_messages;
+	auto isRestricted = !isKicked
+		&& (Data::ChatBannedRightsFlags(newRights) != 0);
+	const auto user = participant->asUser();
+	if (mgInfo && user) {
 		// If rights are empty - still remove admin? TODO check
 		if (mgInfo->lastAdmins.contains(user)) {
 			mgInfo->lastAdmins.remove(user);
@@ -284,7 +290,9 @@ void ChannelData::applyEditBanned(not_null<UserData*> user, const MTPChatBannedR
 		auto it = mgInfo->lastRestricted.find(user);
 		if (isRestricted) {
 			if (it == mgInfo->lastRestricted.cend()) {
-				mgInfo->lastRestricted.emplace(user, MegagroupInfo::Restricted { newRights });
+				mgInfo->lastRestricted.emplace(
+					user,
+					MegagroupInfo::Restricted { newRights });
 				setRestrictedCount(restrictedCount() + 1);
 			} else {
 				it->second.rights = newRights;
@@ -297,7 +305,9 @@ void ChannelData::applyEditBanned(not_null<UserData*> user, const MTPChatBannedR
 				}
 			}
 			if (isKicked) {
-				auto i = ranges::find(mgInfo->lastParticipants, user);
+				auto i = ranges::find(
+					mgInfo->lastParticipants,
+					not_null{ user });
 				if (i != mgInfo->lastParticipants.end()) {
 					mgInfo->lastParticipants.erase(i);
 				}
@@ -319,9 +329,9 @@ void ChannelData::applyEditBanned(not_null<UserData*> user, const MTPChatBannedR
 			}
 		}
 		Data::ChannelAdminChanges(this).remove(peerToUser(user->id));
-	} else {
+	} else if (!mgInfo) {
 		if (isKicked) {
-			if (membersCount() > 1) {
+			if (user && membersCount() > 1) {
 				setMembersCount(membersCount() - 1);
 				flags |= UpdateFlag::Members;
 			}
@@ -543,12 +553,14 @@ void ChannelData::setAdminRights(const MTPChatAdminRights &rights) {
 }
 
 void ChannelData::setRestrictions(const MTPChatBannedRights &rights) {
-	if (rights.c_chatBannedRights().vflags().v == restrictions()
-		&& rights.c_chatBannedRights().vuntil_date().v == _restrictedUntil) {
+	const auto restrictedFlags = Data::ChatBannedRightsFlags(rights);
+	const auto restrictedUntilDate = Data::ChatBannedRightsUntilDate(rights);
+	if (restrictedFlags == restrictions()
+		&& restrictedUntilDate == _restrictedUntil) {
 		return;
 	}
-	_restrictedUntil = rights.c_chatBannedRights().vuntil_date().v;
-	_restrictions.set(rights.c_chatBannedRights().vflags().v);
+	_restrictedUntil = restrictedUntilDate;
+	_restrictions.set(restrictedFlags);
 	if (isMegagroup()) {
 		const auto self = session().user();
 		if (hasRestrictions()) {
@@ -568,10 +580,11 @@ void ChannelData::setRestrictions(const MTPChatBannedRights &rights) {
 }
 
 void ChannelData::setDefaultRestrictions(const MTPChatBannedRights &rights) {
-	if (rights.c_chatBannedRights().vflags().v == defaultRestrictions()) {
+	const auto restrictionFlags = Data::ChatBannedRightsFlags(rights);
+	if (restrictionFlags == defaultRestrictions()) {
 		return;
 	}
-	_defaultRestrictions.set(rights.c_chatBannedRights().vflags().v);
+	_defaultRestrictions.set(restrictionFlags);
 	session().changes().peerUpdated(this, UpdateFlag::Rights);
 }
 
@@ -903,8 +916,11 @@ void ApplyMegagroupAdmins(
 	auto admins = ranges::make_subrange(
 		list.begin(), list.end()
 	) | ranges::views::transform([](const MTPChannelParticipant &p) {
-		const auto userId = p.match([](const auto &data) {
-			return data.vuser_id().v;
+		const auto participantId = p.match([](
+			const MTPDchannelParticipantBanned &data) {
+			return peerFromMTP(data.vpeer());
+		}, [](const auto &data) {
+			return peerFromUser(data.vuser_id());
 		});
 		const auto rank = p.match([](const MTPDchannelParticipantAdmin &data) {
 			return qs(data.vrank().value_or_empty());
@@ -913,10 +929,13 @@ void ApplyMegagroupAdmins(
 		}, [](const auto &data) {
 			return QString();
 		});
-		return std::make_pair(userId, rank);
+		return std::make_pair(participantId, rank);
+	}) | ranges::views::filter([](const auto &pair) {
+		return peerIsUser(pair.first);
 	});
-	for (const auto &[userId, rank] : admins) {
-		adding.emplace(userId, rank);
+	for (const auto &[participantId, rank] : admins) {
+		Assert(peerIsUser(participantId));
+		adding.emplace(peerToUser(participantId), rank);
 	}
 	if (channel->mgInfo->creator) {
 		adding.emplace(
diff --git a/Telegram/SourceFiles/data/data_channel.h b/Telegram/SourceFiles/data/data_channel.h
index 0cb9e88a7..7b9631120 100644
--- a/Telegram/SourceFiles/data/data_channel.h
+++ b/Telegram/SourceFiles/data/data_channel.h
@@ -220,7 +220,7 @@ public:
 		const MTPChatAdminRights &newRights,
 		const QString &rank);
 	void applyEditBanned(
-		not_null<UserData*> user,
+		not_null<PeerData*> participant,
 		const MTPChatBannedRights &oldRights,
 		const MTPChatBannedRights &newRights);
 
diff --git a/Telegram/SourceFiles/data/data_chat.cpp b/Telegram/SourceFiles/data/data_chat.cpp
index da0eaaad9..c12fdb867 100644
--- a/Telegram/SourceFiles/data/data_chat.cpp
+++ b/Telegram/SourceFiles/data/data_chat.cpp
@@ -156,10 +156,11 @@ void ChatData::setAdminRights(const MTPChatAdminRights &rights) {
 }
 
 void ChatData::setDefaultRestrictions(const MTPChatBannedRights &rights) {
-	if (rights.c_chatBannedRights().vflags().v == defaultRestrictions()) {
+	const auto restrictionFlags = Data::ChatBannedRightsFlags(rights);
+	if (restrictionFlags == defaultRestrictions()) {
 		return;
 	}
-	_defaultRestrictions.set(rights.c_chatBannedRights().vflags().v);
+	_defaultRestrictions.set(restrictionFlags);
 	session().changes().peerUpdated(this, UpdateFlag::Rights);
 }
 
diff --git a/Telegram/SourceFiles/data/data_peer.cpp b/Telegram/SourceFiles/data/data_peer.cpp
index 36b612466..8648943de 100644
--- a/Telegram/SourceFiles/data/data_peer.cpp
+++ b/Telegram/SourceFiles/data/data_peer.cpp
@@ -1172,4 +1172,16 @@ std::optional<int> ResolvePinnedCount(
 		: std::nullopt;
 }
 
+ChatRestrictions ChatBannedRightsFlags(const MTPChatBannedRights &rights) {
+	return rights.match([](const MTPDchatBannedRights &data) {
+		return data.vflags().v;
+	});
+}
+
+TimeId ChatBannedRightsUntilDate(const MTPChatBannedRights &rights) {
+	return rights.match([](const MTPDchatBannedRights &data) {
+		return data.vuntil_date().v;
+	});
+}
+
 } // namespace Data
diff --git a/Telegram/SourceFiles/data/data_peer.h b/Telegram/SourceFiles/data/data_peer.h
index 7c7670a29..960f0751a 100644
--- a/Telegram/SourceFiles/data/data_peer.h
+++ b/Telegram/SourceFiles/data/data_peer.h
@@ -95,6 +95,11 @@ struct UnavailableReason {
 	}
 };
 
+[[nodiscard]] ChatRestrictions ChatBannedRightsFlags(
+	const MTPChatBannedRights &rights);
+[[nodiscard]] TimeId ChatBannedRightsUntilDate(
+	const MTPChatBannedRights &rights);
+
 } // namespace Data
 
 class PeerClickHandler : public ClickHandler {
diff --git a/Telegram/SourceFiles/history/admin_log/history_admin_log_inner.cpp b/Telegram/SourceFiles/history/admin_log/history_admin_log_inner.cpp
index 07748ff17..baede6839 100644
--- a/Telegram/SourceFiles/history/admin_log/history_admin_log_inner.cpp
+++ b/Telegram/SourceFiles/history/admin_log/history_admin_log_inner.cpp
@@ -432,8 +432,11 @@ void InnerWidget::requestAdmins() {
 			auto filtered = (
 				list
 			) | ranges::views::transform([&](const MTPChannelParticipant &p) {
-				const auto userId = p.match([](const auto &data) {
-					return data.vuser_id().v;
+				const auto participantId = p.match([](
+						const MTPDchannelParticipantBanned &data) {
+					return peerFromMTP(data.vpeer());
+				}, [](const auto &data) {
+					return peerFromUser(data.vuser_id());
 				});
 				const auto canEdit = p.match([](
 						const MTPDchannelParticipantAdmin &data) {
@@ -441,10 +444,13 @@ void InnerWidget::requestAdmins() {
 				}, [](const auto &) {
 					return false;
 				});
-				return std::make_pair(userId, canEdit);
+				return std::make_pair(participantId, canEdit);
 			}) | ranges::views::transform([&](auto &&pair) {
 				return std::make_pair(
-					session().data().userLoaded(pair.first),
+					(peerIsUser(pair.first)
+						? session().data().userLoaded(
+							peerToUser(pair.first))
+						: nullptr),
 					pair.second);
 			}) | ranges::views::filter([&](auto &&pair) {
 				return (pair.first != nullptr);
@@ -1308,7 +1314,7 @@ void InnerWidget::suggestRestrictUser(not_null<UserData*> user) {
 		} else {
 			_api.request(MTPchannels_GetParticipant(
 				_channel->inputChannel,
-				user->inputUser
+				user->input
 			)).done([=](const MTPchannels_ChannelParticipant &result) {
 				Expects(result.type() == mtpc_channels_channelParticipant);
 
@@ -1352,8 +1358,7 @@ void InnerWidget::restrictUser(
 }
 
 void InnerWidget::restrictUserDone(not_null<UserData*> user, const MTPChatBannedRights &rights) {
-	Expects(rights.type() == mtpc_chatBannedRights);
-	if (rights.c_chatBannedRights().vflags().v) {
+	if (Data::ChatBannedRightsFlags(rights)) {
 		_admins.erase(std::remove(_admins.begin(), _admins.end(), user), _admins.end());
 		_adminsCanEdit.erase(std::remove(_adminsCanEdit.begin(), _adminsCanEdit.end(), user), _adminsCanEdit.end());
 	}
diff --git a/Telegram/SourceFiles/history/admin_log/history_admin_log_item.cpp b/Telegram/SourceFiles/history/admin_log/history_admin_log_item.cpp
index 9a7d78bc5..fae37a714 100644
--- a/Telegram/SourceFiles/history/admin_log/history_admin_log_item.cpp
+++ b/Telegram/SourceFiles/history/admin_log/history_admin_log_item.cpp
@@ -204,14 +204,11 @@ TextWithEntities GenerateAdminChangeText(
 QString GenerateBannedChangeText(
 		const MTPChatBannedRights *newRights,
 		const MTPChatBannedRights *prevRights) {
-	Expects(!newRights || newRights->type() == mtpc_chatBannedRights);
-	Expects(!prevRights || prevRights->type() == mtpc_chatBannedRights);
-
 	using Flag = MTPDchatBannedRights::Flag;
 	using Flags = MTPDchatBannedRights::Flags;
 
-	auto newFlags = newRights ? newRights->c_chatBannedRights().vflags().v : Flags(0);
-	auto prevFlags = prevRights ? prevRights->c_chatBannedRights().vflags().v : Flags(0);
+	auto newFlags = newRights ? Data::ChatBannedRightsFlags(*newRights) : Flags(0);
+	auto prevFlags = prevRights ? Data::ChatBannedRightsFlags(*prevRights) : Flags(0);
 	static auto phraseMap = std::map<Flags, tr::phrase<>>{
 		{ Flag::f_view_messages, tr::lng_admin_log_banned_view_messages },
 		{ Flag::f_send_messages, tr::lng_admin_log_banned_send_messages },
@@ -233,13 +230,11 @@ TextWithEntities GenerateBannedChangeText(
 		const TextWithEntities &user,
 		const MTPChatBannedRights *newRights,
 		const MTPChatBannedRights *prevRights) {
-	Expects(!newRights || newRights->type() == mtpc_chatBannedRights);
-
 	using Flag = MTPDchatBannedRights::Flag;
 	using Flags = MTPDchatBannedRights::Flags;
 
-	auto newFlags = newRights ? newRights->c_chatBannedRights().vflags().v : Flags(0);
-	auto newUntil = newRights ? newRights->c_chatBannedRights().vuntil_date().v : TimeId(0);
+	auto newFlags = newRights ? Data::ChatBannedRightsFlags(*newRights) : Flags(0);
+	auto newUntil = newRights ? Data::ChatBannedRightsUntilDate(*newRights) : TimeId(0);
 	auto indefinitely = ChannelData::IsRestrictedForever(newUntil);
 	if (newFlags & Flag::f_view_messages) {
 		return tr::lng_admin_log_banned(tr::now, lt_user, user, Ui::Text::WithEntities);
@@ -344,21 +339,23 @@ TextWithEntities GenerateInviteLinkChangeText(
 	return result;
 };
 
-auto GenerateUserString(
+auto GenerateParticipantString(
 		not_null<Main::Session*> session,
-		MTPint userId) {
+		PeerId peerId) {
 	// User name in "User name (@username)" format with entities.
-	auto user = session->data().user(userId.v);
-	auto name = TextWithEntities { user->name };
-	auto entityData = QString::number(user->id)
-		+ '.'
-		+ QString::number(user->accessHash());
-	name.entities.push_back({
-		EntityType::MentionName,
-		0,
-		name.text.size(),
-		entityData });
-	auto username = user->userName();
+	auto peer = session->data().peer(peerId);
+	auto name = TextWithEntities { peer->name };
+	if (const auto user = peer->asUser()) {
+		auto entityData = QString::number(user->id)
+			+ '.'
+			+ QString::number(user->accessHash());
+		name.entities.push_back({
+			EntityType::MentionName,
+			0,
+			name.text.size(),
+			entityData });
+	}
+	auto username = peer->userName();
 	if (username.isEmpty()) {
 		return name;
 	}
@@ -386,10 +383,14 @@ auto GenerateParticipantChangeTextInner(
 		return tr::lng_admin_log_transferred(
 			tr::now,
 			lt_user,
-			GenerateUserString(&channel->session(), data.vuser_id()),
+			GenerateParticipantString(
+				&channel->session(),
+				peerFromUser(data.vuser_id())),
 			Ui::Text::WithEntities);
 	}, [&](const MTPDchannelParticipantAdmin &data) {
-		auto user = GenerateUserString(&channel->session(), data.vuser_id());
+		const auto user = GenerateParticipantString(
+			&channel->session(),
+			peerFromUser(data.vuser_id()));
 		return GenerateAdminChangeText(
 			channel,
 			user,
@@ -398,7 +399,9 @@ auto GenerateParticipantChangeTextInner(
 				? &oldParticipant->c_channelParticipantAdmin().vadmin_rights()
 				: nullptr);
 	}, [&](const MTPDchannelParticipantBanned &data) {
-		auto user = GenerateUserString(&channel->session(), data.vuser_id());
+		const auto user = GenerateParticipantString(
+			&channel->session(),
+			peerFromMTP(data.vpeer()));
 		return GenerateBannedChangeText(
 			user,
 			&data.vbanned_rights(),
@@ -406,7 +409,9 @@ auto GenerateParticipantChangeTextInner(
 				? &oldParticipant->c_channelParticipantBanned().vbanned_rights()
 				: nullptr);
 	}, [&](const auto &data) {
-		auto user = GenerateUserString(&channel->session(), data.vuser_id());
+		auto user = GenerateParticipantString(
+			&channel->session(),
+			peerFromUser(data.vuser_id()));
 		if (oldType == mtpc_channelParticipantAdmin) {
 			return GenerateAdminChangeText(
 				channel,
diff --git a/Telegram/SourceFiles/window/window_peer_menu.cpp b/Telegram/SourceFiles/window/window_peer_menu.cpp
index 8c98416c6..82b6a2eda 100644
--- a/Telegram/SourceFiles/window/window_peer_menu.cpp
+++ b/Telegram/SourceFiles/window/window_peer_menu.cpp
@@ -1068,11 +1068,16 @@ void PeerMenuAddChannelMembers(
 			auto already = (
 				list
 			) | ranges::views::transform([](const MTPChannelParticipant &p) {
-				return p.match([](const auto &data) {
-					return data.vuser_id().v;
+				return p.match([](const MTPDchannelParticipantBanned &data) {
+					return peerFromMTP(data.vpeer());
+				}, [](const auto &data) {
+					return peerFromUser(data.vuser_id());
 				});
-			}) | ranges::views::transform([&](UserId userId) {
-				return channel->owner().userLoaded(userId);
+			}) | ranges::views::transform([&](PeerId participantId) {
+				return peerIsUser(participantId)
+					? channel->owner().userLoaded(
+						peerToUser(participantId))
+					: nullptr;
 			}) | ranges::views::filter([](UserData *user) {
 				return (user != nullptr);
 			}) | ranges::to_vector;