The error code ERROR_VUE_WIDE_BLOCK typically indicates that there may be a restriction or a block preventing you from scheduling the exam. This could be due to various reasons such as eligibility issues, account status, or other administrative blocks.
To resolve this issue, you can try the following steps:
- Check Eligibility: Ensure that you meet all the eligibility requirements for the AZ-900 exam.
- Contact Support: If you continue to face issues, it is advisable to reach out to Microsoft Certification Support for assistance. They can provide specific guidance based on your account and the error you are encountering.
- Review Account Status: Make sure your Microsoft account is in good standing and that there are no restrictions on your profile that could affect scheduling.
For further assistance, you can visit the Microsoft Certification Support forums where moderators can help you resolve the issue.