Invitations are blocked for this directory due to suspicious activity. Please contact Microsoft support for help.

Question

We have the same issue as the person that posted the same title here: https://learn.microsoft.com/en-us/answers/questions/4374289/invitations-are-blocked-for-this-directory-due-to?source=docs.

We are using this Entra ID tenant for authentication during a client demo, so we are inviting external users. This is now blocked with the mentioned error, without a way to unblock it. This problem already delayed the start of the demo period, so we need this fixed asap.

Please advise on how we can fix this.

Impact:

• We can no longer invite any new guests.
• Our onboarding of legitimate users is fully blocked.
• This is affecting critical business operations and timelines.

Request:

• Please review and remove the "suspicious activity" block on our directory's invitation capability.
• Please confirm any guidelines or best practices to avoid hitting this block in the future.

Answer 1

As can be seen in a answer below I was contacted by Microsoft Support the same day. There I provided some information using private messaging. This then took 7 days to resolve, which depending on your situation might be too much. During this time I asked for updates and got responses quite quickly. I hope this helps, should anyone else encounter the same problem. To start this all of I created this post. I don't know if thats the best way to do it, but it seems to work.

Answer 2

Hello Stephan W

Based on the error message you received it appears that was Invitations are blocked in your tenant due to suspicious activity.

We addressed this by collaborating with our internal team, who have now unblocked your tenant.

You can check and confirm whether you were able to access the tenant which was blocked.

Hope this helps. Let us know if you have any queries. Happy to assist you further.

If the resolution was helpful, kindly take a moment to click on and click on Yes for was this answer helpful. And, if you have any further query do let us know.