Error while doing settlement from WBS to P&L Account

Hello

I am trying to do a settlement from WBS to P&L Account(Expense account). In this case, "Dummy" Prof Ctr is getting derived from 0KE5 (we have maintained a dummy prof ctr). We have set the validations to disallow any postings/settlements to dummy prof ctr. Hence I am getting an error while doing settlement.

Now I am maintaning a Prof ctr in my WBS master data. I am unable to understand why system is deriving dummy prof ctr and not the one maintained on WBS master data. The settlements are working fine when I do them against Balance sheet accounts and proper prof ctr is getting derived, which is being maintained on WBS master data. I am getting trouble only while doing settlement to my P&lL i.e. expense accounts.

can anyone throw some light on this?

Thks

Sarang