Diagnosis
The amount entered was set to 0.

System Response
The entry is rejected.

Procedure
The system cannot process other flows with the amount 0.
When you are in the overview screen for other flows, you can change theamount to a value other than 0 or delete the flow, if required.
If you are in the details screen for one other flow, you can change theamount to a value other than 0, or choose 'Cancel' and delete the flowon the overview screen, if required.
If the flow is an accrued interest flow, you cannot delete it on theoverview screen. In this case, you have to flag the 'Traded flat' fieldin the settlement data. This suppresses the accrued interestcalculation.