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. Select: Settings – Manage Channel – Administrators – Add administrator. From your list of subscribers, select the correct user. A new window will appear on the screen. Check the rights you’re willing to give to your administrator. It’s easy to create a Telegram channel via desktop app or mobile app (for Android and iOS): How to create a business channel on Telegram? (Tutorial) Invite up to 200 users from your contacts to join your channel
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