How to pull Telegram private messages from users to Zendesk?

1:1 interactions can only be handled via bot. 

So, first of all, you need to create a bot using @BotFather as described here: ​🔗 How to set up Telegram integration with Zendesk? 

Once the bot is created, add its token to the accounts inside Zendesk:

Next, find your newly created bot in Telegram and send it a message. This message should create a ticket in your Zendesk.

Please note: 1:1 (personal) conversations can only be handled via a bot. A bot must always be part of the conversation to deliver Telegram messages to Zendesk — except in the case of Telegram Business (Private) chatbot accounts. For Business accounts, please refer to this guide: ​How to connect Telegram Business account to Zendesk?