SAP Message WC132 - No comp. maintained for follow-on item & in sales unit & for date &

Diagnosis
Changes have been made to materials contained in the follow-on itembill of material that will become active on &V3&. The follow-on itembill of materials is not, however, valid on this date.

System Response
The record cannot be prepared for downloading.

Procedure
Create the follow-on item bill of material withvalidity date as of today.