Diagnosis
The netting unit contains at least one flow for which the
Payment activity indicator has been set to active,and at least one flow for which this indicator has been left inactive.

Procedure
If you save the netting unit anyway, the system adjusts the affectedflows to make them match.
The direction of the net amount determines whether or not thePayment activity indicator is set to active. The system uses thesetting made for the flow that has the same direction as the netamount.