Tax Number Duplicity Restriction (CNPJ, CPF, State Inscription)

Since the companies in Brazil must not have 2 partners to the same CNPJ and/or State Inscription (IE), or CPF, you can prevent that 2 customer master records or 2 vendors created to the same Tax ID using SAP Standard (Configuration). Some time ago, this was only possible with coding / user exit.

First, let me explain about the TAX IDs in Brazil:

-Tax Number 1 (STCD1) – CNPJ -- Only for legal entities (companies)

-Tax Number 2 (STCD2) – CPF -- Only for Natural Person

-Tax Number 3 (STCD3) – State Inscription -- Only for legal entities (companies)
If exempt, must contain word “ISENTO”

-Tax Number 4 (STCD4) – Municipal Inscription -- It can contain RG (ID) if vendor is Natural Person
If exempt, must contain word “ISENTO”

 -Sole Proprietr (STKZN) – Natural Person indicator -- Must be active when vendor is not a legal entity but a Natural Person