Either you're starting your first project or you want to add a new channel to an existing one. To do so, select Telegram Channel in the Add Resource menu (@InviteMemberBot > /myprojects > your project > Channels and groups > Add resource):
Then, select the Connect Channel button:
Choose your channel from the list, or make one if you don’t have one. Click “Create a New Channel for This” if you haven’t made a channel yet.
Press "Send" to confirm.
Your channel is now connected!
You can check out our article about how to create a Telegram Channel: