Diagnosis
The system cannot create a document for an MRP element if no numberrange or interval has been maintained in Customizing of MRP or if thenumber range you have maintained is not allowed.
Below is a list of MRP elements that are affected:
Number range object,,MRP element
PLAF,,planned order (operative oder simulative)
EBAN,,purchase requisition
RESB,,dependent requirements
MDSM,,simulative dependent reqmts (long-term planning)
MDTB,,MRP list

Procedure
Check the number ranges in Customizing. If you do not have thenecessary authorization, please get in touch with your systemsadministration.