On Microsoft Learn, the legal name is used for identity verification when taking Microsoft Certification exams and must match the name on the government-issued ID presented at the exam.
If the legal name was entered incorrectly and an exam has not yet been registered, update it through Microsoft Learn profile settings by editing the legal name field so it matches the ID.
If an exam has already been registered, changing the legal name requires Microsoft support approval. In that case, contact Microsoft Certification/Learn support and request a legal name correction, providing appropriate identification if asked.
For issues where the proctor or exam registration already blocked an attempt due to a legal name error, use the official certification support channel: https://learn.microsoft.com/en-us/credentials/support/help
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