After you click the Test & Enable Mailbox button on a mailbox record in Dynamics 365 (online), you encounter the following alert:

"An internal Microsoft Dynamics 365 error occurred while synchronizing appointments, contacts, and tasks for the mailbox <Mailbox Name>. The owner of the associated email server profile <Email Server Profile Name> has been notified. The system will try again later.

Email Server Error Code: Crm.8004d24b.The user has not been assigned any License"


The user does not have a Dynamics 365 license assigned in Office 365. 


Assign a Dynamics 365 license to the user.

NOTE:  After assigning a Dynamics 365 license to the user in the Microsoft Online Portal, it may take a few minutes for the license information to sync to Dynamics 365.

For step by step instruction for how to assign a Dynamics 365 license to a user, refer to the following article:

Purchase and assign Dynamics 365 (online) licenses

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!