Duplicate Check by Tax Number

Hi Experts,

I have a requirement to check BP duplictaes by Tax number. In other words, any time a BP is being created and has the same Tax Numer as an existing one, the system must not allow the creation of the new BP.

I have realized that in these scenarios SAP gives an Info message saying that there is already a BP with this number, but it allows the user to skip the message and still save the BP. Is there anyway to transform this Info message to an error message? Have you had this requirement before?

The message code is BUPA_TAX400.

Thank you very much in advace,

Best Regards,

LUCAS