Hey @Karandeep, 

can you elaborate on what you refer to as User ID? Or where in the manager you’re trying to change that? 

Hello @Karandeep 

Welcome to the Trackunit Community!  

We’re wondering if you are referring to your Manager account’s username log-in.. because if that is the case there is an option to change the user name if you are the admin(owner).

You may contact Tech Support to request the username change. 

However, if you are not the admin(owner), the only way is to delete your current user profile and create a new profile with the desired username. 

UPDATE: 
You as the administrator will be able to change the username if needed after the user has been created (see "Edit user information" below).

Sharing with you an easy to follow article from our Help Center on how to do this: https://help.trackunit.com/en/articles/145003-how-do-i-manage-users-of-my-account

Hope this answers your question. Feel free to reply if you need more info