Diagnosis
The selected reference operation set &V1& is not valid on &V2&.

System Response
If default values have been maintained in Customizing, an operation isgenerated automatically.

Procedure
Check why the reference operation set does not meet the selectionconditions:
Is it valid on &V2&?
Is lot size &V3& within its validity area?
Is the selection ID for routing selection (Customizing: order type-dependent parameters) of a type that allows reference operation sets tobe selected?
If the reference operation set has a change number, is it valid forproduction on &V2&?
Display reference operation set
Order type-dependent parameters