Use the BillingSoftware (Extn) Extension to specify the software's details. You specify the software's ID, the hash code and a text description.

Elements

Element	Description
`Invoice/UBLExtensions/UBLExtension/ExtensionContent/InvoiceExtension/ProcessDetails/ BillingSoftware/Number`	The billing software's numeric identifier.
`Invoice/UBLExtensions/UBLExtension/ExtensionContent/InvoiceExtension/ProcessDetails/ BillingSoftware/HashCode`	The hash code.
`Invoice/UBLExtensions/UBLExtension/ExtensionContent/InvoiceExtension/ProcessDetails/ BillingSoftware/Description`	Free-text description of the software certification.

Example

<ubl:Invoice>
    <!-- Code omitted for clarity -->
    <cec:UBLExtensions>
        <cec:UBLExtension>
            <cec:ExtensionContent>
                <vrbl:InvoiceExtension>
                    <!-- Code omitted for clarity -->
                    <vrbl:ProcessDetails>
                        <!-- Code omitted for clarity -->
                        <vrbl:BillingSoftware>
                            <vrbl:Number>nº 234567</vrbl:Number>
                            <vrbl:HashCode>CFTR</vrbl:HashCode>
                            <vrbl:Description>sistema certificado na AT</vrbl:Description>
                        </vrbl:BillingSoftware>
                        <!-- Code omitted for clarity -->
                    </vrbl:ProcessDetails>
                </vrbl:InvoiceExtension>
            </cec:ExtensionContent>
        </cec:UBLExtension>
    </cec:UBLExtensions>
     <!-- Code omitted for clarity -->