Unable to Schedule DP-900 Exam – Unexpected Error

The "Unexpected error" during DP-900 exam scheduling is commonly caused by an issue with the Pearson VUE account, often after failed payment attempts or an account block.

Based on similar resolved cases, the next steps are:

1. Contact Pearson VUE support directly
   The error typically indicates that the Pearson VUE account is blocked (for example, due to multiple failed payments) and must be unlocked by Pearson VUE.
   • Use the Pearson VUE Microsoft contact page: Pearson VUE customer service for test-takers.
   • Explain that the error appears right after transferring from Microsoft Learn to Pearson VUE and prevents scheduling DP-900.
2. Use Microsoft Certification Support if needed
   If the issue appears to be on the Microsoft Learn side or persists after contacting Pearson VUE, raise it with Microsoft Certification Support:
   • Go to the Certification Support page: https://aka.ms/CertificationSupport (links in the context point to the Microsoft Certification Support Forums).
   • Provide the exact error message and that it occurs when scheduling DP-900.
3. Retry scheduling after the account is unlocked
   Once Pearson VUE confirms the account is unlocked or fixed:
   • Return to the DP-900 exam page on Microsoft Learn.
   • Click Schedule exam, complete the transfer to Pearson VUE, and proceed with scheduling.

Users with the same "Unexpected error" message have resolved it after Pearson VUE support unlocked their accounts or fixed the block.

References:

• Unexpected Error issue - Microsoft Q&A
• I cant book certification exams at learn.microsoft.com - Microsoft Q&A
• Getting this error while registering for a Microsoft certification. - Microsoft Q&A
• Register and schedule an exam
• Frequently asked questions about exam accommodations
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