Hello Ram Tirumalaraju,
Thanks for posting your question in the Microsoft Q&A forum.
After completing the Microsoft challenge, you should expect the exam voucher to be applied to your account a few days later. When you proceed to the exam page and navigate through the exam scheduling flow, you'll encounter a prompt that says, "If you have a voucher code, continue to exam scheduling. You will enter the code on Pearson Vue before payment." This is where you'll find and apply the voucher before proceeding with scheduling your exam.
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