Check whether document has already been entered under number & & &

What causes this issue?

It was found that the data in this document is largely the same as the
data in document (CoCde/Doc.No./FYear) &V1& &V2& &V3&.

System Response

There is a possibility that a duplicate entry has been made.

How to fix this error?

Check whether the present <DS:REPO.FI_DUPLICATE_INVOICE_SHOW>document
</>@10@ has already been entered under the specified number.
INCLUDE 'CUSTOMIZED_MESSAGE_INFO' OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.