Yes, it needs a license in this scenario:
Do I need a license for shared mailbox?
Aleksandar Tomov
30
Reputation points
Hello,
One of our client needs shared mailboxes with active in-place archive.
Do they need to buy license(Exchange Online Plan 1 or 2..etc..) or there is not required to be assigned a license for this mailbox?
Thanks!
BR,
Aleksandar