PassSync How to receive the PWD last Set after any password change

i all,
The customer has the password synchronization installed.
He want to have the value of "pwd last set" immediately after a user change password.
We try to map on synchronizationEditor the "pwd last set", on User(PassSync) provisoning workflow, but the value is not updated.

Could you tell me what are the steps to have the last updated value just after any update without waiting the daily synchronization  ?

Thank you very much and best regards