Service messages

Telegram writes some events into the chat as notices, for example "Alex joined the group" or "Sam pinned a message". The bot immediately deletes the notices of the enabled types. It does the same job as /cleanservice in Rose.

Types

Type	Name in the command	When Telegram writes it	Default in a group
Joined	join	A member joins, or someone adds a member	On
Left	leave	A member leaves, or someone removes a member	On
Pinned	pin	Someone pins a message (also when the bot pins it)	On
Title changed	title	Someone changes the chat title	On
Photo changed	photo	Someone changes or deletes the chat photo	On
Video chat	videochat	Someone starts, ends or schedules a video chat, or sends an invitation	Off
Other	other	Boost, auto-delete timer, payment and similar events	On

If you turned off the joined/left cleanup in a group before, the new types also start off. The "Private" profile turns off all types.

Never deleted: forum topic notices (topic created, topic closed, topic renamed). The "Topic created" message is the first message of the topic.

Where to change the settings

• Panel: Chats → chat → Service messages. Each type has a switch.
• Bot: for a group, open 🛂 Entry security → 🧹 Service messages. For a channel, tap 🧹 Service messages on the chat screen. Tap a type. The type turns on or off.
• Command in the group: only the Owner or an Admin can use the commands. The bot deletes the command message.

Command	What it does
/cleanservice	Shows the status
/cleanservice pin title	Turns on the given types
/cleanservice pin off	Turns off the given type
/nocleanservice pin	Turns off the given type
/cleanservice on or off	Turns all types on or off
/cleanservicetypes	Describes the types
/cleanservice history	Deletes the notices of the last 48 hours

Old notices

You can also delete the notices that came before you turned on the cleanup:

• Panel: Service messages → Clean the last 48 hours. The bot asks for confirmation.
• Bot: on the 🧹 Service messages screen, tap 🕘 Clean the last 48 hours.
• In the group: send /cleanservice history.

The bot deletes only the enabled types. Limits:

• Telegram does not let a bot delete a message that is older than 48 hours.
• The bot knows only the notices that it saw. The bot cannot delete notices from before you added it.
• In a very busy account, the bot can remember less than 48 hours of notices.

Channels

A channel has no joined or left notices. The other types also work in a channel. In channels, the cleanup starts off. Turn it on in the panel or in the bot.

To delete messages that it did not send, the bot needs the Delete messages permission in the channel. When you use the “Add channel” button in the panel, this permission is already selected. If the bot does not have this permission in a channel that you added before, the panel shows the missing permission. Fix: Channel → Administrators → bot → turn on Delete messages.