Our authoritative source is Successfactor. I need:
If I run an aggregation on the Successfactor source, when it creates a new identity, I want the username attribute to be generated using a transformation to use the firstName and the lastName.
Now, I need this generated username to be validated against the Active Directory source to check if there is an account with that generated username and if so, to be able to change the username of the identity until a valid username is found.