After importing your Microsoft 365 users to Teams, you can watch our video to learn how to add a new user to a Segment:
​

Or follow the step-by-step instructions provided:
​
​Step 1.
From the Segments tab, you can just tap on a segment to which you want to add users.
​

Step 2.
Click + Add user button.
​

​Step 3.
In a popup window, select either a specific user or all users and click Add to the Segment button.
​

​Step 4.

The user will now be added to the selected Segment.
​

Note: A Microsoft 365 user can only be added to one Segment.
​
As the next step, we recommend following our guide on how to deploy a signature template for users.