SAP Message RSOD105 - Document class &1 is revised and cannot be changed

Diagnosis Document class &V1& is being processed at the moment and cannot bechanged to add an attribute for the characteristic to be activated. System Response The characteristic cannot be activated. Procedure Activate the document class &V1& in the Document ModelingWorkbench transaction. You can find the class in the BW -> LOIOClasses or BW -> PHIO Classes area.