I have submitted the request for azure az-900 certification voucher

Check the request under the Manage tab of Microsoft Credentials Support; three business days is not a documented general delivery deadline, and the timing depends on the specific voucher promotion.

Check your request status

1. Look for the case-confirmation email from [Email], including the junk/spam folder.
2. Open the Microsoft Credentials Support request site and select Manage to view the case status.
3. Sign in using the same Microsoft account used to submit the request.
4. Do not open a duplicate case if the existing one remains active. Credentials Support communicates by email during business hours.^1^

Check whether the benefit is already applied

Some AZ-900 event benefits are associated with the email address used to register rather than delivered as a separate voucher code.

1. Sign in to Microsoft Learn with the same email address used for the training or event.
2. Start scheduling AZ-900 through Pearson VUE.
3. Continue until the checkout/payment page, without submitting payment.
4. Check whether the discount appears automatically.^2^

If your promotion explicitly promised an emailed code, also search your inbox, spam, and promotions folders for messages concerning Microsoft certification or Pearson VUE. Delivery dates vary by promotion; some campaigns distribute vouchers in batches rather than immediately after form submission.^3^

If neither a discount nor an email appears after the timeframe stated in your promotion’s terms, update the existing support case with:

• The promotion or event name
• Registration/completion date
• Microsoft Learn username
• Email address used for registration
• Screenshot or confirmation of completion

References

1. Credentials support
2. I have not received the discount voucher for the AZ-900 - Microsoft Q&A
3. no voucher recieved - Microsoft Q&A