How To Fix WL320 - Workflow no. & not started: Runtime error?

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 320

• Message text: Workflow no. & not started: Runtime error?

What causes this issue?

Workflow no. &V1& should be started but has not (yet) started
successfully.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The cause of the problem may be one of the following:
Workflow start with wrong API function.
If the workflow was started with an API function, check whether the
correct API function SWW_WI_START was used. It is possible that the
workflow was only created with the API function SWW_WI_Create, but not
really started.
Error or termination starting workflow.
Analyze the messages in the technical step log for workflow no. &V4&
and the history of work item no. &V1&.
The SAP workflow system crashed when the background step was started.
Analyze the system log (<DS:TRAN.SM21>transaction SM21</>) or any
available dumps (<DS:TRAN.ST22>transaction ST22</>).
More information can be obtained from the diagnosis.
INCLUDE NA_WF-ADMINISTRATOR OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.