Partner Center rejects Nigerian 13-digit Tax ID and support page keeps loading

Submit a Partner Center support ticket through the direct tax-registration route and request manual review by the Marketplace tax-profile team; the available documentation does not provide a supported workaround for entering a valid Nigerian 13-digit TIN into a field that rejects it.

Open the escalation

1. Sign in to Partner Center using the work account associated with the developer account.
2. Open the official Partner Center support-ticket route. Microsoft lists this route for operational questions related to its Global Tax ID modernization.^1^
3. If prompted, select the workspace containing the Microsoft Store seller account.
4. Use a problem summary such as: Valid Nigerian 13-digit TIN rejected by Marketplace developer tax profile
5. In the description, include:
   • Legal company name and country/region.
   • Seller ID in the ticket’s secure details—not in a public Q&A post.
   • The valid 13-digit TIN in the secure support request only.
   • The exact validation message.
   • The field and page where validation fails.
   • A screenshot showing the rejected value and error, with unrelated sensitive information removed.
   • A request to route the case to the Microsoft Marketplace/Store tax-profile team for validation-rule review or manual remediation.
   • A note that the normal support page remains stuck loading.

Do not shorten, pad, or substitute an older-format identifier merely to pass client-side validation. The published documentation does not identify such a workaround.

If the direct ticket route does not open

Use the support controls inside Partner Center instead of returning to the standalone page that is already failing:

1. Select the AI assistant icon in the upper-right.
2. Describe the TIN validation failure.
3. Select Contact Support.
4. Choose the relevant workspace and problem type.
5. Select Review solutions → Create support request → Submit.

If AI assistant is unavailable, select Help (?) → Contact Support, then follow the same request workflow.^2^

Any Partner Center user can create a Marketplace support request. After submission, track it through Help (?) → View my support requests.^3^

Confirm the profile is attached to the correct seller program

The person editing the tax profile must have the Owner or Financial Contributor role for that seller account. In Partner Center, open:

Settings → Account settings → Payout and tax profile assignment → select the program and seller-ID combination → Edit

Confirm that this is the developer/Marketplace profile, not an Incentives or Microsoft AI Cloud Partner Program location profile; those profiles are separate and cannot be reused interchangeably.^4^

Once support corrects the validation issue:

1. Complete the tax form.
2. Select Finish at the upper right.
3. Select Complete at the lower left.
4. Expect Pending Microsoft Validation, followed by Complete when accepted or Action Required if further information is needed.
5. Allow up to 48 hours for validation.^4^

Microsoft Q&A cannot directly modify the account or escalate a tax profile from a public thread; the secure Partner Center request is required.

References

1. April 2026 announcements
2. Get help and contact support in Partner Center
3. Support for Microsoft Marketplace program in Partner Center
4. Set up Microsoft Marketplace payout and tax profiles