Hi Rien,
I think you should want to reverse the DBT flows, but generally
the transaction to be different according to the scanerio.
1, If the business transaction the DBT related to does not need to be reversed,
then TPM19 is fine. Please make sure recalculate immediate is selected. And then DBT is re-calculated. The old one is reversed and new one is created according to the logic
2, If the main business transactions need reverse , the scanerio is also
different. If it's main flow in FTR_EDIT, like repayment, you have to reverse the transaction,
if not, then it's ok to just reverse the flow in FTR_EDIT(cash flow tab)
After that, run TPM10 according to Balaj's sugestion.
Regards, Feng