Invitations are blocked for this directory due to suspicious activity

Hello Super Boss,

Thank you for contacting Microsoft Support!

I would recommend you raise a support case with Microsoft Entra, a Support Engineer will be able to look into this issue and assist you better. You can raise support ticket from New support request - Microsoft Entra admin center or https://admin.microsoft.com/#/support/requests.

Hope this helps.

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Hi @Super Boss

This usually means that your Azure AD tenant has been flagged by Microsoft as a possible security risk or unusual activity. I recommend that you submit a support ticket to Microsoft Support and provide details of your tenant to help the support team unblock your tenant.

Hope this helps.

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Hi @Super Boss

We appreciate you contacting us offline and shared tenant details over email.

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

I'm working with my team to unblock invitations for your tenant. Will update you shortly.

Thanks,
Navya.