Belgium (BE) Field Mapping
Country: BE
Compliance: Peppol BIS Billing 3.0
Last Updated: 2026
Requirement Legend
M: Mandatory
CM: Conditional Mandatory
O: Optional
Field Mapping Reference
1) Core Invoice Information
| Field | GETS Path | Mandatory | Notes |
|---|
| Invoice number | header.documentNumber | M | BT-1 |
| Document ID | header.documentId | M | ULID/UUID |
| Invoice issue date | header.issueDate | M | BT-2 |
| Invoice issue time | header.issueTime | O | Optional |
| Document type | header.documentType | M | base + optional modifiers |
| Currency | header.currency | M | BT-5 |
| Tax currency | header.taxCurrency | CM | If different from invoice currency |
| Exchange rate | header.exchangeRate.rate | CM | When taxCurrency provided |
| Due date | header.dueDate | CM | Required for B2B |
| Reference invoice | header.referenceId | CM | Credit/debit notes |
| Credit/debit reason | header.noteIssuanceReason | CM | Credit/debit notes |
2) Process Control
| Field | GETS Path | Mandatory | Notes |
|---|
| Business process type | extensions.peppol_businessProcessType | M | BT-23 |
| Specification identifier | extensions.peppol_specificationIdentifier | M | BT-24 |
See Also