Hi guys
Not sure if you are following the exact steps while doing such a transaction.
First you have to create the NDF Transaction, preferably defined with a separate Transaction type and then settle the Transaction. The date Needs to be in the future.
the next step is then to go FTR_EDIT and add the Price for the Settlement in the field Cash Settlement. The Price Needs to be different from the original Transaction. If this is the case the difference should appear in the deliverable currency and can be posted with TBB1.
Regards
Juerg Heiz