This tutorial explains all the steps required to set up Telegram to work with Make.

To use a Telegram bot in Make scenarios, you will need to:
• Create a Telegram bot and copy the API token
• Add the bot into a channel/chat as an admin
• Find the Chat ID for the channel or group
• Create a Make workflow using the API token and Chat ID

Written version of this tutorial: https://www.make.com/en/help/tutorials/using-telegram-bot-with-make