Manage field mapping in the default Belgium e-invoice file templates so that Avalara payloads comply with Peppol BIS Billing 3.0 and EN 16931 requirements.

Use the default Belgium e-invoice file templates for Invoice, Credit Memo, and Debit Memo as the starting point for your Avalara integration. As part of Zuora's pre-integrated country model, these templates are expected to be delivered out of the box and validated against Avalara's mandate definitions.

When you review field mappings for Belgium, make sure the generated payload follows the Belgium mandate requirements for Peppol BIS Billing 3.0 and EN 16931 compliance. Reuse standard Avalara mappings for common data such as party information, addresses, tax details, and totals, and add Belgium-specific mappings only where required by the local mandate or by your implementation pattern.

Pay special attention to the following mapping areas:

• Seller identifiers and buyer identifiers used for Belgium and PEPPOL routing.

• References to prior billing documents for credit-note and correction scenarios.

• Business-category-specific logic, if you need to distinguish B2B, B2C, and B2G processing behavior in templates.

If the default field mapping does not align with your business requirements, customize the Belgium template and validate the resulting XML against Avalara's country mandate definitions and sample payload guidance before moving to production testing.