Maximum...

Value

Owners per group

100

Groups a user can create

250

Groups an admin can create

Up to default tenant limit of 500K

Number of members

More than 1,000

Users might notice delays when accessing the calendar and conversations in large groups in Outlook

File storage

1 Terabyte + 500 Megabytes per subscribed user + any additional storage purchased. You can purchase an unlimited amount of additional storage.