Trobles white adding new user

[m.vandenbergBBMEY]

I'm trying to add a user but I keep getting the following message. Does anyone have an explanation for this because I can add other users. Thank you very much in advance.

[swapnil.hamdapureDDSVZ]

Hi @m.vandenbergBBMEY , are you still facing the issue? Is this specific to certain user?