A workflow approval is an element that can route the to a person or persons who can approve, reject, or request a change, or delegate an approval task. When the workflow is designed, we can use the outcome of an approval task to trigger other workflow tasks, or simply inform the user. The workflow approval status is persisted as a field on the document record (the vehicle record, in our case) in the same way that the workflow type does.
As a result of this, there are often two fields on the workflow's main table, one for the workflow document state, and another for the workflow element state. In some cases, such as human resource workflows, the Base Enum is combined into one field. This can seem confusing, but when the workflow status field is properly defined, it simplifies this process.
