SAP Message WL476 - Control command '&1' unknown

Diagnosis
The workflow control command specified above is not provided.
INCLUDE NA_WF_ERROR OBJECT DOKU ID TX

Procedure
Check the related workflow definition. A container operation(assignment, addition, multiplication and so on) may have accidentlybeen defined as a control command. In this case, change the workflowstep appropriately for a container operation.