A requirement is that users must not receive an email notification when they are automatically added to the community.

Dear @Daniel Brkic,

I hope you’re having a good day. 

Thank you for providing such a detailed description of your testing and findings.

Based on what you described, it appears that you have already successfully disabled the Microsoft 365 Group welcome message, and your testing strongly suggests that the email being sent is a separate Viva Engage community membership notification rather than the standard Microsoft 365 Group welcome email. The fact that users receive the same email whether they are added manually or through Entra ID Dynamic Membership points to the notification being generated by Viva Engage itself.

After reviewing the available Microsoft documentation, I have not found a supported tenant-level, community-level, or administrator-level setting that specifically suppresses the"You've been added to a community" notification email for Viva Engage community membership events. While Viva Engage provides a number of user-controlled notification settings, the available documentation does not describe an administrative control for disabling this particular membership notification.

Based on the testing results you shared and the documentation currently available, I am inclined to believe that this is currently expected product behavior rather than a configuration issue.

Since your requirement is to manage community membership dynamically without generating user-facing membership emails, I would encourage you to submit feedback directly to the Viva Engage product team. Your scenario provides a strong business case: organizations using Entra ID Dynamic User groups may need membership changes to occur automatically and silently, while the current behavior generates a notification each time a user is added to the community.

The feedback you have gathered through your testing is particularly valuable because it demonstrates that the notification is sent regardless of whether the membership change is performed manually or automatically through Dynamic Membership. This helps clearly illustrate the limitation and the business impact for organizations managing communities at scale.

Thank you again for taking the time to perform such thorough testing and share your findings with the community. I hope Microsoft considers this scenario in future enhancements to Viva Engage, as I can certainly understand the need to synchronize membership automatically without generating unnecessary community membership emails.

Warm regards,  

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