Message SAP /SAPMP/PP_BD002 - Max.prod.length and the fixed scrap first and last lengths contain values

&CAUSE&
You tried to create or change a bill of material (BOM) or a routing.This is not possible because at least one of the fields Max.Production Length, Fixed Scrap First Length or FixedScrap Last Length contains a value. These fields must be blank forthe length calculation method that you selected.

System Response
The system terminates the backup operation.

Procedure
Delete the values from the above fields.