Invitations are disabled for our directory.

Felipe Quelhas Cardim 0

We have a tenant specifically for guest users, to grant access to applications after MFA configuration.

Yesterday, when trying to bulk invite a few users, I received the following error:
"Invitations are blocked for this directory due to suspicious activity. Please contact Microsoft support for help."

After this, now all analysts are unable to invite users to the tenant, including global admins, whether it be bulk invitations or individual invitations, and we're getting this error: "Insufficient privileges to complete the operation"

akinbade abiola 20,300 Reputation points

2024-11-05T22:50:02.0333333+00:00

Hello Felipe Quelhas Cardim,

You will need to contact the Azure support team to help unblock your tenant.

See similar issue here: https://learn.microsoft.com/en-au/answers/questions/2088931/invitations-are-blocked-for-this-directory-due-to

Regards,

Abiola
Navya 13,380 Reputation points Microsoft Vendor

2024-11-06T18:12:41.9166667+00:00

Hi @Felipe Quelhas Cardim

Can you please provide your tenant details so that I can unblock invitations for your tenant.
Neuvi Jiang 1,460 Reputation points Microsoft Vendor

2024-11-07T06:52:37.78+00:00

Hi Felipe,

Thank you for posting in the Q&A Forums.

This usually means that your Azure AD tenant or Office 365 subscription has been flagged by Microsoft as a possible security risk or anomalous activity. Here are some possible steps and recommendations to resolve this:

Check security alerts and reports:

Log in to the Azure portal to see if there are any security-related alerts or reports. These may include unusual login attempts, suspicious activity, or security policy violations.

Verify tenant status:

Verify that your tenant has not been suspended or restricted for non-payment, usage violations, or other reasons.

Check global administrator permissions:

Ensure that the global administrator account performing the invite action has the correct permissions and role assignments. Although global administrators typically have the authority to invite users, conditional access policies or other security settings, if any, may restrict these permissions.

Review conditional access policies and MFA configurations:

Check for any conditional access policies that might prevent users from being invited. In particular, those policies related to geographic location, IP address ranges, device compliance, or multi-factor authentication (MFA).

Ensure that all global administrators have properly configured MFA.

View audit logs:

View audit logs in Azure AD, which can provide more contextual information about failed invitation attempts.

Check external collaboration settings:

If your tenant is configured with collaboration restrictions with external users (e.g., B2B invitations), check whether these settings might affect the invitation process.

Best regards

NeuviJ

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Navya 13,380 Reputation points Microsoft Vendor

2024-11-05T17:14:20.18+00:00

Hi @Felipe Quelhas Cardim

Thank you for posting this in Microsoft Q&A.

I understand you are trying to invite guest users but getting error "Invitations are blocked for this directory due to suspicious activity. Please contact Microsoft support for help".

To unblock your tenant can you please share your tenant name and tenant id along business justification on azcommunity [at] microsoft [dot] com with Sub - "ATTN: Navya" and following details in the email body: Link to this thread/post.

Thanks,
Navya.
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Navya 13,380 Reputation points Microsoft Vendor

2024-11-12T10:06:39.7333333+00:00

Hi @Felipe Quelhas Cardim

Could you please share your tenant details over email so that I can unblock invitations for your tenant.
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