How To Fix SF345 - The document is not used in any structure

SAP Error Message - Details

• Message type: E = Error

• Message class: SF - SAPfind: Message Texts

• Message number: 345

• Message text: The document is not used in any structure

What causes this issue?

You selected different languages in the name and language entries for
the source and target structure. Structures can only be copied to
structures with the same language entry.

System Response

The copy function is not performed and the window in which the entries
are made is displayed again.

How to fix this error?

Enter the same language for source and target structure.

Error message extract from SAP system. Copyright SAP SE.