Is there a way that I can setup the integration so that an existing users org unit is never changed. I get that new users must be created ina specific org unit but I don’t want this system to change the ou of existing users.
You can use the IsUpdate Global constant to distinguish between new users and existing users?
If you don’t want to apply a mapping to a user that is being updated, then you would also use the IsUpdate and Ignore global constants.
You can read more about the usage here: