microsoft teams client.
Microsoft Teams users can enhance an existing Microsoft 365 group with Teams functionality. When it comes to enhancing a Microsoft 365 public group, users can do it if the membership is less than or equal to 5,000.
To do this, users must go through the flow of creating a new team from the Microsoft Teams client. Select create from> Microsoft 365 group, and then choose the existing group you want to enhance with Teams. Existing group members will automatically be added as team members
Only owners of Microsoft Group 365 have permission to enhance an existing group with Teams, and that group must contain fewer than 5,000 users. Computers that have already been upgraded will not be shown in the list.
The option to create a team from a Microsoft 365 group will not be available unless these conditions are met