Add up to 50 administrators You can invite up to 200 people from your contacts to join your channel as the next step. Select the users you want to add and click “Invite.” You can skip this step altogether. Earlier, crypto enthusiasts had created a self-described “meme app” dubbed “gm” app wherein users would greet each other with “gm” or “good morning” messages. However, in September 2021, the gm app was down after a hacker reportedly gained access to the user data. It’s easy to create a Telegram channel via desktop app or mobile app (for Android and iOS): 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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