To be able to make automated posts to your Telegram channels and groups, you need to create a Telegram bot. Bots are applications that run inside Telegram. Users can interact with bots by sending them messages, commands, and inline requests.
Learn more about Telegram bots
To create your own bot, you need to use the original Telegram bot named BotFather. Use the Search in your Telegram app to find it. Start a conversation with it.
Use the /newbot command to create a new bot. The BotFather will ask you for a name and username, then generate an authentication token for your new bot.
You will need this token to Authenticate the bot in your RSS Ground posting campaigns. Keep it saved either in this message or if you wish to be on the safe side remove this message and save this token on your PC.
You can use the default settings in your RSS Ground account to keep your token:
It will be automatically entered every time you create a new Telegram posting campaign.
Now, to be able to make posts to your channel or group, you need to add your bot there. Go to your group or channel, use the "Add members" or "Add subscriber" option. Find the bot by its name using the search option.