I'm building a solution where Dispute case need to be created only against Trade promotion related deductions (short payments). Since incoming payments are EDI 820 so there is no way to mark an open AR item as 'trade related' on its creation itself. So I'm proposing to assign deduction 'reason code' to the open AR items identified as trade promotion relevant by AR personal. Then execute FDM_AUTO_CREATE in background with 'open item' in selection and the deduction reason code to create dispute cases automatically.
I would like to know if there can be better approach then this?
P.S. - We have TPM integration where Dispute case is sent to CRM in form of claim, once claim is settled in CRM then FI document is created in ECC and settles the disputed amount.