The status of check is changed in FEBA_LOCKBOX

HI All,

We are facing a problem in FEBA_LOCKBOX.

Customer checks were in unprocessed status in Tcode FEBA_LOCKBOX. After sometime users have changed the status to "applied".

We want to know who has changed the status of the checks in FEBA_LOCKBOX.

We have checked almost all the tables(FEBEP,FEBKO, AVIK, AVIP, AVIR) but we didn't get any solution.

Please help to find out the users who have changed the status in FEBA_LOCKBOX

Regards,

Jayasudha