Hi Partha,
It is hard to make a guess from that information.
I tryed to reproduce this in the BOFU demo application, but was not able to.
If you put a break point in class
/BOFU/CL_FBI_CONNECTOR->IF_FPM_CONNECTOR_RUN~GET_OUTPUT
on the call to method mo_controller->get_target_keys
check if
ET_KEY_LINKS
ET_TARGET_KEYS
are filled.
notice which class is called for the above method (for the generic FBI code the class should be /BOFU/CL_FBI_CONTROLLER_BASE)
you can also run the demo application /BOFU/DEMO_SAMPLE_CUSTOMER, and compare it to your application. (it uses feeder class /BOFU/CL_FBI_GUIBB_LIST_ATS, but the class to the entity collection is similar).
BR,
Matan.