Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select “New Channel” from the drop-down menu. Invite up to 200 users from your contacts to join your channel How to create a business channel on Telegram? (Tutorial) Activate up to 20 bots The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar.
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