Microsoft 365 tenant locked out after CSP deauthorization — need tenant recovery

Question

Microsoft 365 tenant locked out after CSP deauthorization — need tenant recovery

Pete Muhly 0

North State Processing lost access to our existing Microsoft 365 tenant after our former CSP partner was deauthorized and the CSP-associated subscriptions were canceled.

I was the administrator for our company email accounts. Microsoft now reports that my work account does not exist, so I cannot sign in to the Microsoft 365 Admin Center or use self-service password recovery.

Our primary concern is recovering access to the existing tenant and Exchange mailboxes, including historical email. We do not want to create a replacement tenant or move our domain until Microsoft determines whether the existing tenant and mailbox data can be recovered.

We have Microsoft’s 30-day cancellation notice and final cancellation notice and can provide the tenant ID, domain ownership verification, company information, and any other information required privately.

How can this be escalated to Microsoft Tenant Recovery / Data Protection when no administrator account for the tenant remains accessible?

Pete Muhly 0 Reputation points

2026-10-05T16:30:49.2133333+00:00

Thank you. I attempted the phone procedure exactly as described. The IVR repeatedly routes me to multifactor authentication and sends me to aka.ms/mac365. It does not allow me to create a service request or reach the Data Protection team.

The affected administrator account no longer exists according to Microsoft’s own sign-in and account-recovery systems, so MFA recovery cannot resolve this.

Since the phone escalation path is inaccessible, can you please advise whether a Microsoft moderator can engage or initiate a Data Protection/Tenant Recovery support ticket for this tenant, or provide another way to have that ticket opened without access to the affected tenant?
Vincent Choy 11,265 Reputation points Volunteer Moderator

2026-10-05T16:46:26.98+00:00

no, we have no pathway to the data protection team.

You can try reaching the former partner - hence to their distributor (who they purchased it from), to see if they can assist.

Alternatively its to setup a trial account and raise a support ticket from there. However the admin of the trial account should be the same admin as your locked M365 account.
Kai-L 19,920 Reputation points Microsoft External Staff Moderator

2026-10-05T16:56:32.1466667+00:00

Dear Pete,

Unfortunately, as a forum moderator, I am not able to open or escalate a Data Protection or tenant recovery ticket on your behalf. My role here is limited to providing general guidance you can apply from your side.

Since the phone path isn't working for you, the trial tenant option I shared earlier is the best way forward. Once the trial tenant is set up, submit a service request from its admin center. In the description, please explain that the request is about a different tenant you are locked out of. If you include the affected tenant's domain name or tenant ID and ask for the case to go to the Data Protection team, the support agent can route it correctly.

If anything comes up while setting this up, feel free to post here and I'll be glad to help where I can.

1 answer

Your answer

Pete Muhly 0 Reputation points

2026-10-05T16:30:49.2133333+00:00

Thank you. I attempted the phone procedure exactly as described. The IVR repeatedly routes me to multifactor authentication and sends me to aka.ms/mac365. It does not allow me to create a service request or reach the Data Protection team.

The affected administrator account no longer exists according to Microsoft’s own sign-in and account-recovery systems, so MFA recovery cannot resolve this.

Since the phone escalation path is inaccessible, can you please advise whether a Microsoft moderator can engage or initiate a Data Protection/Tenant Recovery support ticket for this tenant, or provide another way to have that ticket opened without access to the affected tenant?
Vincent Choy 11,265 Reputation points Volunteer Moderator

2026-10-05T16:46:26.98+00:00

no, we have no pathway to the data protection team.

You can try reaching the former partner - hence to their distributor (who they purchased it from), to see if they can assist.

Alternatively its to setup a trial account and raise a support ticket from there. However the admin of the trial account should be the same admin as your locked M365 account.
Kai-L 19,920 Reputation points Microsoft External Staff Moderator

2026-10-05T16:56:32.1466667+00:00

Dear Pete,

Unfortunately, as a forum moderator, I am not able to open or escalate a Data Protection or tenant recovery ticket on your behalf. My role here is limited to providing general guidance you can apply from your side.

Since the phone path isn't working for you, the trial tenant option I shared earlier is the best way forward. Once the trial tenant is set up, submit a service request from its admin center. In the description, please explain that the request is about a different tenant you are locked out of. If you include the affected tenant's domain name or tenant ID and ask for the case to go to the Data Protection team, the support agent can route it correctly.

If anything comes up while setting this up, feel free to post here and I'll be glad to help where I can.

Answer 1

Dear Pete,

This is a tenant lockout and possible data-recovery case, not a standard password-reset issue. As a forum moderator, I genuinely wish I could directly access your account or delve into the backend systems to diagnose and fix this for you. Unfortunately, my role here is limited to providing general guidance and steps you can apply from your side. I am not able to escalate to data protection team, recover admin access, or make changes to your Microsoft 365 tenant. That said, I will do my best to provide a clear path forward. For business accounts, the best way to reach Data protection team is by phone. You can refer to this article to see the customer support phone number for your region.

Customer service phone numbers - Microsoft Support

Here are some tips and a sample response to help you navigate the Interactive Voice Response (IVR) system more effectively:

In some countries the call is handled by an automated system, which tends to cut people off if the answers do not match what it expects. Here is a flow that generally works better:

IVR: What kind of problem do you have?

You: Account recovery

IVR: What kind of product do you use?

You: Office 365 for business.

IVR confirmation: education or business account?

You: For Business

IVR: Are you an administrator?

You: Yes.

IVR: Is there another administrator in your organization?

You: No.

IVR: Do you need a... service request?

You: Yes, please connect me with the Data Protection team.

Kindly note that you may need to repeat this process a few times, availability can vary based on local business hours, and the term "Global Admin" should be clearly mentioned during the call.

Alternatively, if reaching support by phone is not possible, you can also create a free trial tenant and submit your request from there. To set up a new tenant, follow these steps:

Visit the Office 365 Enterprise plan and pricing comparison page, choose Basic plan, and click "Try for free" to start a free trial.

Follow the guided setup process to create your new trial account.

Once the new tenant is created, you should be able to access your support portal and submit your ticket.

Sign in to the Microsoft 365 admin center

Go to Show All > Support > New Service Request.

In the request, explain your situation in detail.

The support team will guide you through the identity verification process to help you regain access to your account.

Important Notes:

This new test tenant doesn't give you access to your original locked tenant's data or settings. It only serves as a temporary means of contacting Microsoft support.

Be prepared for Microsoft to want to verify your identity and admin privileges from the previous tenant.

The processing time may be longer due to contacting support from another tenant.

Remember to cancel the trial subscription as soon as your original account is restored to avoid unwanted charges.

I truly hope you get this resolved swiftly. Please know that even though I cannot directly intervene, pointing you toward the correct, specialized support is genuinely the most effective help I can offer from my position. Please let me know if you need anything else. Wishing you all the best.

If the answer is helpful, please click "Yes" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in the forum documentation to enable e-mail notifications if you want to receive the related email notification for this thread.