The EAN & is already used for the material &

What causes this issue?

You have entered an International Article Number (EAN) that is already
used for another material.

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?

Check whether you are sure you want to assign the same number. If not,
correct your entry.

Procedure for System Administrators

INCLUDE OMT4 OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.