IDoc & already processed, processing not possible

Message type: E = Error

Message class: B1 - ALE group messages

Message number: 305

Message text: IDoc & already processed, processing not possible



What causes this issue?

The IDoc &V1& is currently locked by another user.
Processing is not possible.


How to fix this error?

To find out the user who locked the IDoc, display the corresponding
lock entries.

Error message extract from SAP system. Copyright SAP SE.