Diagnosis
An independent requirement or a schedule line has already been createdand then deleted for this material.

System Response
The system saves independent requirements that were created under arequirements number that is maintained internally within the system.This requirements number is not deleted along with independentrequirements items. This means that if a planned independentrequirement item is deleted for a material, the requirements numberstill exists. The system uses this requirements number to save new orchanged independent requirements for this material.

Procedure
By selecting the ENTER key, you can create new planned independentrequirement items.