Starting from Identity Manager 12.6 SP7 a new functionality was added:
"The Person ID attribute associated with the Oracle Applications accounts can now be updated."
When configuring the endpoint through the Provisioning Manager, the 'Person' field is always left grayed out and blank.
It is not possible to modify it and it does not receive any value for the users correlated.
Identity Manager 12.6 SP7
The functionality added works only through the IM UI and not the provisioning Manager.
Import new role definitions of Oracle Applications from Management Console.
Under the 'Account' tab of the Account Create/Modify screen you will see the person attribute populated with the account person ID.
It can be edited and changed.