In the next window, choose the type of your channel. If you want your channel to be public, you need to develop a link for it. In the screenshot below, it’s ”/catmarketing.” If your selected link is unavailable, you’ll need to suggest another option. 6How to manage your Telegram channel? 5Telegram Channel avatar size/dimensions Content is editable within two days of publishing 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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