I tried to schedule my certification exam for AZ-900 and I am getting the following error 
I tried to schedule my certification exam for AZ-900 and I am getting the following error 
Microsoft Certification Program is supported on their own forums. I'd try asking for help with exam scheduling in dedicated forums here. (Participate\Ask A Question)
Exams/Exam Registration/General Registration Questions
Exams /Exam Registration and Scheduling/Scheduling with Pearson Vue
Pearson VUE Customer service
Pearson VUE contact / chat
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There is a known issue with this right now, but as DSPatrick mentioned you will need to reach out to PearsonVue support as certificate scheduling is owned by them.
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