I need to reschedule the AZ900 exam at PearsonVue.

To reschedule your AZ-900 exam at Pearson VUE, you can do so through the certification dashboard or by contacting Pearson VUE support. Make sure to reschedule at least 24 hours before your scheduled exam to avoid forfeiting your exam fee.

References:

• An Important Update on Microsoft Training and Certification
• Reschedule and cancellation policies

You can reschedule from your Learn profile https://dori-uw-1.kuma-moon.com/users/me/credentials/?tab=credentials-tab

See https://dori-uw-1.kuma-moon.com/en-us/credentials/support/reschedule-and-cancellation-policy#how-to-reschedule-or-cancel-your-exam for instructions