I've had a play around with a really simple APEX Workflow: Here are some points to bear in mind when working with one: Workflows and Tasks run in background scheduler jobs with no APEX session. You cannot therefore use eg. :APP_USER in static values, say, as a variable. You would need to pass :APP_USER in as a parameter to the workflow from the page process. If you want to run something in a scheduler job for doing something with a workflow, you need to call apex_session.crea