Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Tony,
Actually, the answer is yes.
First of all, you need to add the external user to the contacts in Exchange admin center. Please follow the steps below:
1.Log into EAC with an admin account.
2.In the Exchange admin center, click recipients>contacts.
3.Click “+”> mail user and fill in the blanks.
4.Click Save.
5.Then you edit member to add this external user to the Office 365 group you have created.
Feel free to post back if anything is unclear.
Best Regards,
Lance