Where exactly do you customize the delta enablement for 0FC_BP_ITEMS?
According to help.sap.com you can find the customizing under
But I don't find it there.
I find the following implementation guide path which might be the right one:
Financial Accounting -> Contract Accounts Receivable and Payable -> Basic Functions -> Postings and Documents -> Basic Settings -> Maintain Central Settings for Posting. There you will get this customizing table. Is this the right place? Which field must be activated?