Why I got the message "Email ID already exists" when I register in the builder of Ecostruxure Augmented Operator Advisor for the first time?

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At the first registration in the builder of Ecostruxure Augmented Operator Advisor you can get the following message:

It is probably because this email is already used for another Schneider web application (example: Machine Advisor)
All Schneider web application use the same login / password
So, in order to connect to Ecostruxure Augmented Operator Advisor, reuse the login password already create before for another Schneider Web Application