Create a Team that Includes Guest Users

Create new teams as you start new projects or add customers.

  1. On the Teams tab, select Join or create a team Create team > Build a team from scratch > Private.

  2. Enter a name for your team, a description, and then select Create.

  3. On the Add members page, add internal members by searching and selecting them, and add guest members by entering their email address, and then select Add.

    If you see We didn't find any matches, you must enable guest sharing. Go to the Microsoft 365 admin center, choose the Teams admin center, choose Org-wide settings > Guest access, and turn on Allow guest access in Teams. This change may take up to 24 hours.

  4. Select Close. Your guests and members will receive invitations to the team.

  5. On the General channel, enter a greeting for everyone and select Send.

  6. On the Files tab, add documents that you want to work on together. You can create them here or drag and drop files from your computer. 

 

Source: https://support.microsoft.com/en-us/office/schedule-a-teams-meeting-with-guests-c61b4f61-ee62-4a06-8bf7-0a1cd302700a?ui=en-US&rs=en-US&ad=US