Dear Srinivass
Kannan is right; but why can you not use Cg37? Here you have a user interface to populate the data; and if you drill down you can see how it is designed. But you need to pay attention. The BOMBOS interface will work (according to my knowledgeI) only if you "trigger" the generation of the worklist; and this is done "different" using a different function module; I believe at the "end" 'C1L0_BOM_TRIGGER_GEN_WL is used as well. BOMBOS is not discussed often here.
E.g. check: http://www.se80.co.uk/sapfms/c/c1l0/c1l0_bom_trigger_gen_wl.htm
consolut - C1L0_BOM_TRIGGER_GEN_WL - EHS: BOMBOS - Initialisierung; Erstellung BOM-Eintrag in ESTWL (sorry I found by hazard only german klink; but there is similar link in english)
May be check as well: SAP EHS Management for Beginners; some references to threads regaridng BOMBOS are available there as well.
C.B.