The EAN & has an invalid prefix

What causes this issue?

The EAN (International Article Number) must contain a valid EAN prefix
due to the <DS:GLOS.EAN_category>EAN category</> assigned to it. This
EAN does not contain a valid EAN prefix.

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?

You have the following options:
Enter a number with a valid prefix.
Ask your system administrator to extend the list of valid EAN prefixes
in Customizing for the <LS>Material Master</> in the activity
<DS:SIMG.SIMG_CFMENUOLMSW4EQ>Define Prefixes for EANs/UPCs</>.

Error message extract from SAP system. Copyright SAP SE.