Check target file name or format of the source file

What causes this issue?

The source file does not have the corrrect format, that is, the chosen
name of the target file does not correspond with the DME format of the
source file.

System Response

The copy transaction is not carried out.

How to fix this error?

Check the target file name entry. If the name is in the list of allowed
names (see program documentation), then you must check the structure of
the source file and compare it with bank regulations.

Error message extract from SAP system. Copyright SAP SE.