No detail log is available

What causes this issue?

If you have not set the relevant switch in the start transaction, or if
the valuations are not being processed in parallel, you cannot use the
detail log.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.