SAP Message WRF_FOLUPART081 - &: "Valid From" greater than "Valid To" in import file

Diagnosis The start of the validity period for the follow-up/replacement materialrelationship is later than the end of the validity period in the importfile. System Response The system does not create or change any follow-up/replacement materialrelationships. Procedure Change the validity period for the follow-up/replacement materialrelationship in the import file.