SAP Message >4281 - You cannot use reason &1 for writing-off credit

Diagnosis
You want to write off a credit.
You have specified reason &V1& with percentage rate &V2& and percentagebasis "&V3&" for the write-off.

System Response
When writing off credit, only reasons with a percentage rate of 100%and a percentage basis of " " are permitted.

Procedure
Choose another write-off reason.