Use the AccountingCustomerPartyExtension (Extn) Extension to specify this information.

Elements

Name (Path)	Cardinality	Description
Accounting Customer Party Extension Group (`AccountingCustomerParty/ UBLExtensions/ UBLExtension/ExtensionContent/ AccountingCustomerPartyExtension/`)	0..1	This code specifies the function of the centre.
Role Type Code (`AccountingCustomerParty/UBLExtensions/UBLExtension/ ExtensionContent/AccountingCustomerPartyExtension/ AdministrativeCentre/ID`)	0..1	This code specifies the function of the centre.
Role Type Code Scheme ID (`AccountingCustomerParty/UBLExtensions/UBLExtension/ExtensionContent/ AccountingCustomerPartyExtension/AdministrativeCentre/ID @schemeID`)	0..1	Use `VRBL:ES-B2G:RTC`.
Centre Code (`AccountingCustomerParty/UBLExtensions/ UBLExtension/ExtensionContent/AccountingCustomerPartyExtension/ AdministrativeCentre/PartyIdentification/ID`)	0..1	This identifies the centre.
Centre Code Scheme ID (`AccountingCustomerParty/UBLExtensions/ UBLExtension/ExtensionContent/ AccountingCustomerPartyExtension/AdministrativeCentre/ PartyIdentification/ID @schemeID`)	0..1	Use `VRBL:ES-B2G:RTC`.
Centre Street Name (`AccountingCustomerParty/UBLExtensions/UBLExtension/ ExtensionContent/AccountingCustomerPartyExtension/ AdministrativeCentre/PostalAddress/StreetName`)	1..1	The name of the street where the centre is located.
Centre City Name (`AccountingCustomerParty/UBLExtensions/UBLExtension/ ExtensionContent/AccountingCustomerPartyExtension/ AdministrativeCentre/PostalAddress/CityName`)	1..1	The name of the city where the centre is located.
Centre Postal Code (`AccountingCustomerParty/UBLExtensions/UBLExtension/ ExtensionContent/ccountingCustomerPartyExtension/ AdministrativeCentre/PostalAddress/PostalZone`)	1..1	The centre's post code.
Centre Province (`AccountingCustomerParty/UBLExtensions/UBLExtension/ ExtensionContent/AccountingCustomerPartyExtension/ AdministrativeCentre/PostalAddress/CountrySubentity`)	0..1	The province or other country subdivision where the centre is located.
Centre Country Code (`AccountingCustomerParty/UBLExtensions/UBLExtension/ExtensionContent/ AccountingCustomerPartyExtension/AdministrativeCentre/ PostalAddress/Country/IdentificationCode`)	1..1	The code that represents the country where the centre is located.
Place of Supply (`AccountingCustomerParty/UBLExtensions/UBLExtension/ExtensionContent/ AccountingCustomerPartyExtension/PlaceOfSupply`)	1..1	An element to inform the state code of place of supply.

Restrictions

You must use VRBL:ES-B2G:RTC as the vale for both the Role Type Code Scheme ID (ID @schemeID) and Centre Code Scheme ID (PartyIdentification/ID @schemeID) elements.
You must use one of the following values for the Role Type Code (ID) element:

Role Type Code	Description
`VRBL:ES-B2G:01`	Fiscal
`VRBL:ES-B2G:02`	Receptor
`VRBL:ES-B2G:03`	Payer
`VRBL:ES-B2G:04`	Buyer
`VRBL:ES-B2G:06`	Seller
`VRBL:ES-B2G:07`	Payee
`VRBL:ES-B2G:08`	Beneficiary
`VRBL:ES-B2G:09`	Issuer

Example

<ubl:Invoice>
    <!-- Code omitted for clarity -->
    <cac:AccountingCustomerParty>
        <cec:UBLExtensions>
            <cec:ExtensionContent>
                <vrbl:AccountingCustomerPartyExtension>
                <!-- Code omitted for clarity -->
                    <vrbl:AdministrativeCentre>
                        <cbc:ID schemeID="VRBL:ES-B2G:RTC">01</cbc:ID>
                            <cac:PartyIdentification>
                            <cbc:ID schemeID="VRBL:ES-B2G:CC">A13013774</cbc:ID>
                            </cac:PartyIdentification>
                            <cac:PostalAddress>
                                <cbc:StreetName>C/ Maiquez 5, planta 4</cbc:StreetName>
                                <cbc:CityName>MADRID</cbc:CityName>
                                <cbc:PostalZone>10122</cbc:PostalZone>
                                <cbc:CountrySubentity>MADRID</cbc:CountrySubentity>
                                <cac:Country>
                                    <cbc:IdentificationCode>ES</cbc:IdentificationCode>
                                </cac:Country>
                            </cac:PostalAddress>
                        </vrbl:AdministrativeCentre>
                    <!-- Code omitted for clarity -->
                </vrbl:AccountingCustomerPartyExtension>    
                <!-- Code omitted for clarity -->
            </cec:ExtensionContent>
            <!-- Code omitted for clarity -->
        </cec:UBLExtensions>
        <!-- Code omitted for clarity -->        
    </cac:AccountingCustomerParty>
     <!-- Code omitted for clarity -->
</ubl:Invoice>