In Italy, supplier's details are held in a Professional Register. You can add these details to your Documents.

Use the ProfessionalRegister (Extn) Extension to model this information,

Italian Specifications

The following elements correspond to the listed fields in the Italian specifications:

Element	Italian Specifications
`Name`	`1.2.1.4 (AlboProfessionale)`
`CountrySubentity`	`1.2.1.5 (ProvinciaAlbo)`
`ID`	`1.2.1.6 (NumeroIscrizioneAlbo)`
`RegistrationDate`	`1.2.1.7 (DataIscrizioneAlbo)`

Elements

Element	Description
`Invoice/AccountingSupplierParty/UBLExtensions/UBLExtension/ExtensionContent/ AccountingSupplierPartyExtension/ProfessionalRegister/Name`	The Supplier's name.
`Invoice/AccountingSupplierParty/UBLExtensions/UBLExtension/ExtensionContent/ AccountingSupplierPartyExtension/ProfessionalRegister/CountrySubentity`	Specify the ISO code for the State. It must use the pattern `IT-{SubEntityCode}`.
`Invoice/AccountingSupplierParty/UBLExtensions/UBLExtension/ExtensionContent/ AccountingSupplierPartyExtension/ProfessionalRegister/ID`	The Professional Register number for the Supplier.
`Invoice/AccountingSupplierParty/UBLExtensions/UBLExtension/ExtensionContent/ AccountingSupplierPartyExtension/ProfessionalRegister/RegistrationDate`	Date the professional was registered.

Restrictions

You muse use the the ISO code for the CountrySubentity element. It must use the pattern IT-{SubEntityCode}. For example IT-VR.

Example

The following example specifies some supplier information:

<ubl:Invoice>
    <cac:AccountingSupplierParty>
        <cec:UBLExtensions>
            <cec:UBLExtension>
                <cec:ExtensionContent>
                    <vrbl:AccountingSupplierPartyExtension>
                        <vrbl:ProfessionalRegister>                   
                            <cbc:Name>Albo Register Name</cbc:Name>
                            <cbc:CountrySubentity>IT-VR</cbc:CountrySubentity>
                            <cbc:ID>1234567</cbc:ID>
                            <cbc:RegistrationDate>2020-06-10</cbc:RegistrationDate>
                        </vrbl:ProfessionalRegister>
                    </vrbl:AccountingSupplierPartyExtension>
                </cec:ExtensionContent>
            </cec:UBLExtension>
        </cec:UBLExtensions>
        <!-- Code omitted for clarity -->
    </cac:AccountingSupplierParty>
</ubl:Invoice>