How many e-mail address could related with one account

Kana Kunikata 0 Reputation points

I have 3 e-mail addresses would like to link with one account

One is the comay official e-mail

Second is the Microsoft CSP e-mail

Third is my personal e-mail

Is it possible to relate one account together

because I would like to take an exam

Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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