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. Unlimited number of subscribers per channel To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. Telegram users themselves will be able to flag and report potentially false content. A Telegram channel is used for various purposes, from sharing helpful content to implementing a business strategy. In addition, you can use your channel to build and improve your company image, boost your sales, make profits, enhance customer loyalty, and more.
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