SAP Message C2287 - Backflush: Control key & should allow confirmation

Diagnosis
You have marked component &V1& as a backflush component. You want toassign it to operation &V2& whose control key &V3& does notpermit confirmation. Backflush components are not proposed duringgoods issue for the order.

Procedure
Select a control key that permits confirmation for the operation towhich the component is assigned, or delete the "Backflush" indicator.