Hi Amlan Ji,
Thanks for your reply,
Yeah i have maintained WBS Element in above given path "Define CO Account Assignment Keys". But i didnt maintained any WBS Ele. in next spro path "Store CO Account Determination Key for IS-U Contracts"
Cost Element Category:1 (Primary costs/cost-reducing revenues),GL a/c is Bad debts Write off.
WBS Ele..is required entry in Field status group.
Thanks,
Abbas