Issue in BAPI_ENTRYSHEET_CREATE

Hi,

     While creating Service Entry sheet(SES) by using the standard transaction CATM(creating SES for vendor employee) we can see columns

     document number(ESLL-BELNR) & counter ( ESLL-CATSCOUNTE) but if we are using Bapi - BAPI_ENTRYSHEET_CREATE to create SES,

     the above columns are not getting updated in SES or these columns are not visible at all in SES.

     Values for doc number & counter are there in EKKO table but it is not getting updated in ESLL table.

       I don't know which parameter(input values for bapi) I am missing.