If the error persists after trying multiple browsers and clearing cache, use the supported exam scheduling path and then contact certification support.
- Go to the exam or certification details page and select the button to schedule the exam with Pearson VUE.
- Sign in to the Learn profile associated with the exam registration.
- Make sure the Learn profile has the legal name required for the exam. The legal name must match the legal ID, or the exam cannot be taken.
- Complete the required contact details and submit to continue to Pearson VUE.
- During checkout, verify the total amount due is $0.00 if using an eligible free exam offer, then submit the order.
If scheduling still fails with an unexpected error, the documented support path is to contact Microsoft Certification Support or Credentials support. For exam appointment or scheduling issues, Microsoft Q&A guidance also points to Pearson VUE Support.
If the issue is specifically when accessing the exam from the Learn profile for an online exam, try opening the Learn profile in an Incognito/InPrivate browser window. If access still fails, open a case with Credentials support.