Hi Reny,
Automatic Workflow configuration not has been done. Some basic activities necessary need to be configure for execute the workflow.
Click here to get more information for complete the work flow activity. Automatic Workflow Customizing - SAP Business Workflow - SAP Library
More information of execute and manage workflows for EHSM Refer SAP Note 1251255 - Authorizations for the system user (WF-BATCH) .
Edward