Changing a users account name is not possible, as there is already another IYOPRO user with the target account name (Error code 104)
During the synchronization run a change in the account name of a user was detected. This user was identified by
his security id. However the new account name is already in use in IYOPRO.
If this happens please verify that the accounts provided for the user synchronization by the directory service are unique and match
the existing IYOPRO accounts.