Interface programs of changing Bid Invitation and Quotation
I have a problem about changing Bid Invitation and Quotation in SRM.
I want to create custom applications including interface programs, so I think I have to call BAPI (Tr-cd:BAPI), Function Module (Tr-cd:SE37), or Enterprise Services (http://help.sap.com/content/documentation/esoa/docu_esoa_srm.htm).
I found "BidInvitationEC" and "SupplierQuotationEC" in SRM BAPIs, but each of BAPIs doesn't support changing method. (Only Create Method is supported.)
Please help us if you have a good solution.