Preface : This Membership Management “HowTo” is instruction for performing bulk upload of members to a private Sharepoint Teams/Group.
/!\ Note : when you add users they will receive a notification of the membership modification to their account(s).
Download and run this extension:
Once installed, authenticate as the Team Owner.
Steps to import are straight forward: list emails and click the button.
add in your *firstname.lastname@example.org emails …. 100 at a time from your desired member list
Also note that each email must be delimited by “;” semicolon
click Bulk Import per 100 accounts
Let the process run / do not close panel while processing as this action may corrupt the team
It will show if any email address could not be found in AD/Azure.