SAP Message V4004 - The production go-ahead start time lies after the prod.go-ahead end time

Diagnosis You have entered a start date for cumulative production which is laterthan the end date for cumulative production. System Response The system does not accept the entry or gives a warning message. Procedure Please correct the entry in both data fields in cumulative production.If both fields have not been correctly maintained, the cumulativeproduction go-ahead quantity, which is only for information purposes,will not be able to be correctly determined.