Hi @Md Abu Sayeed Bhuiyan ,
Welcome to our forum!
Looks like your case is more related to Microsoft Learn and certification, please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client. Based on my research, i found a similar thread as yours, please refer to it: Change email address on Microsoft Learning Profile and Certifications.
If it doesn't help, it's suggested that you could post your issue in the dedicated forum for more professional suggestions.
Thanks for your understanding and hope your issue will be resolved soon!
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