SAP Message WV_RRM003 - No material or plant selection has been specified

Diagnosis
Neither a material nor a plant was selected in the selection screen.However, this data is needed to perform a data export.

System Response
The data export is not triggered in the RRM interface.

Procedure
Enter a group of materials and/or plants for which you want to exportdata. You use the appropriate indicators to determine what data is to beexported.