WBS element exceed error

Question

hi:
   We are using SRM5.0 with ECS.I transfer PR into srm with plan driven procurement.
   When I creat a PO for this PR and check it, the error message occurs,says item 001 wbs element *** exceed budget, I could not save the PO but hold it,so I think this error message was not the one from  R/3.I am just wondering ,what budget does the system check?
          Hope some could help me.Tks.

Answer 1

Usually, 99% of this issues can be solved when you read and understand the SRM budget check note 520717 and read as well the related notes esp. regarding the CO-report RKACSHOW -- here you see and understand, how and where the budget data are stored on CO-tables and how the AVAC - availibility control works.
You can debug as well -- out of the BBP_PD-Form PROCDOC_CROSS_CHECKS the FM BBP_PD_COMMITMENT_FILL_ITAB is called. Here the data are mapped into backend structures in way ERP-backend requires it. Before the RFC-call is made please look up how exactly the structures are filled. This is something you need to understand whether  there are some special tolerance-limits maintained on the CO side. You'll find these AVAC-tolerance limits in the CO-IO resp. WBS customizing (ask a CO-friend if you don't find it right away;). There you see exactly the tolerance linked to certain document type etc.
You can debug as well from the RFC call on -- once you're on the ERP side set a breakpoint at FM RWIN_CHECK -- here all check for Accounting are loaded. One of these checks refers to CO-AVAC. It is something like K_...BUDGET... or K_...OPEN_ITEM or K_...AVC....You have to look up yourself as this is just too long ago.
Cheers,
Richard