IDoc issue : BUS1011 : BAPI_BANK_CHANGE

Hi Friends

While updating Bank records its generating IDOC, during that time its calling BUS1011-->BAPI_BANK_CHANGE.

Its generating IDOC and sending from source to destination system , But when I check the records in source system BNKA its showing user name as "Logical Destination Login ID".My Doubt is record should be updated with sy-uname right, I am not sure how its changing.

Valuable inputs will be appreciated.

Thanks

Gowrishankar