Hi Atulya,
Thank you for contacting the Microsoft Community.
I recognize how important it is for you to schedule your exam smoothly while taking advantage of your discount voucher so let me guide you through the next steps to help you proceed with scheduling.
We have received multiple reports from other candidates encountering the following error message: "We encountered an unexpected error. Please try again later. If this issue continues, please contact site support."
This issue has been raised with our support team and immediately received an update that there is indeed an intermittent issue with exam registration. To ensure that this doesn't happen, please make sure to clear your browser’s cache and cookies before trying again, as some candidates have successfully scheduled their exams after following these suggested steps.
You may also contact the Pearson VUE support team for real-time assistance, as they have direct access to exam scheduling. You can reach them using the link below and select your correct region.
In the meantime, if you will be using a company provided voucher and you are an active ESI Learner (part of an organization affiliated with the Enterprise Skills Initiative), please contact the ESI support team directly. I've sent their contact details in a private message. Kindly use your work email address when creating a ticket with them. They typically respond within 3-5 business days.
Moreover, if you are pertaining to a different voucher, I highly recommend reaching out to the voucher issuer so they can provide you with alternative options regarding the initially used discount.
Meanwhile, if the issue persists, please provide the requested information in the private message., along with the recording of the entire process—starting from the troubleshooting until you receive the error.
For Windows devices, use the Snipping Tool to capture the steps: open the tool, select the video icon, click "New," draw the area to record, press "Start" to begin, and "Stop" to end the recording. For Mac devices, please follow the instructions provided in this link.
I look forward to your response. Please note that if no response is received after two business days, the case will be closed and locked. After the case is locked, we will no longer be able to respond, even through Private Messages. Thank you.
Best regards,