logging as root to different AWS acct numbers but same email

Hello.

AWS root accounts cannot be created using the same email address, so what you want to do is currently not possible.
So what I often do is create an AWS account using an alias for my email address.
With this, you don't have to create a separate email address and can manage everything with one email address.
https://www.reddit.com/r/aws/comments/hc44kr/comment/fvf7922/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

I don't see how two accounts could have the same root email address. However, if the accounts belong to an AWS Organization with the all features mode enabled, you can change the root email address for any member account from inside the organisation's management account: https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_accounts_update_primary_email.html

I thought you could not have the same email addresses for two accounts, but turns out it was a recurring issue with multiple users facing the issue when changing the root email of the second account to the same as the first account. When changing a email of a AWS account with email already associated with was account, it shouldn't be allowed but apparently, AWS allowed this. If you have issue with multiple AWS account with same email, what you can do Is login to the account you can access and change the root email to something else and now with two unique account with two email you can just reset the password if you want.