I am trying to update the Custom fileds of WBS element in PRPS table , include structure " CI_PRPS", Field "ZZKUNNR" , " ZZWWRBR" , " ZZFND_SRC".
For this purpose I am trying to use a standard BAPI " BAPI_BUS2054_CHANGE_MULTI " , because these fields are not their in the standard structure of BAPI.I am using " EXTENSIONIN " structure of the same BAPI.
can someone tell me how to use this EXTENSIONIN structure to populate the Three custom fields.
Regards