Unique fields in new Customer User

[IT4Fun]

Hi everyone,

So, I'm trying to add a new customer user to my OTRS deployment. The problem is that customer user has 4 different companies and, consequently, 4 different customerIDs and, at least, 2 different emails accounts. So, for me, it make sense add 4 customer users with the same firstname, lastname, username and email and 4 differents customerID. The thing is that the OTRS requires unique values for the username and email field. Is there a workaround to possibly solve this issue?

Thanks in advance,
César