> For the complete documentation index, see [llms.txt](https://docs.docbits.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.docbits.com/administration-and-setup/settings/global-settings/document-types/edi/supported-electronic-documents/denmark-oioubl.md).

# DENMARK OIOUBL

| Property             | Value                                         |
| -------------------- | --------------------------------------------- |
| **Country / Region** | Denmark                                       |
| **Document Types**   | Invoice (Faktura), Credit Note                |
| **Format**           | XML (UBL 2.1)                                 |
| **Standard**         | OIOUBL 2.1 (Offentlig Information Online UBL) |
| **Locale**           | `da_DK`                                       |

OIOUBL (Offentlig Information Online UBL) is the Danish e-invoicing standard based on UBL 2.1. It is mandatory for invoices to Danish public-sector entities and widely used in B2B transactions. DocBits detects OIOUBL 2.1 documents by the presence of `<cbc:CustomizationID>OIOUBL-2.1</cbc:CustomizationID>`. The profile identifier `urn:www.nesubl.eu:profiles:profile5:ver2.0` indicates the NES (Northern European Subset) invoice profile.

## Support Status

| Component        | Status      |
| ---------------- | ----------- |
| Preview          | ✅ Supported |
| Field Extraction | ✅ Supported |
| Transformation   | ✅ Supported |

## Default Preview

<figure><img src="/files/oxKZJ8ArsTa0yZHHXIGd" alt="Denmark OIOUBL 2.1 invoice preview in DocBits"><figcaption><p>Default DocBits preview for a Denmark OIOUBL 2.1 invoice (Faktura)</p></figcaption></figure>

## Field Mapping

### Header Fields

| DocBits Field          | Source XML Element                                                                 | Notes                                            |
| ---------------------- | ---------------------------------------------------------------------------------- | ------------------------------------------------ |
| `invoice_id`           | `cbc:ID`                                                                           | Invoice number                                   |
| `invoice_date`         | `cbc:IssueDate`                                                                    | ISO 8601 issue date                              |
| `due_date`             | `cbc:DueDate`                                                                      | Payment due date                                 |
| `invoice_type`         | `cbc:InvoiceTypeCode`                                                              | UNCL 1001 code (380=Invoice, 381=Credit Note)    |
| `currency`             | `cbc:DocumentCurrencyCode`                                                         | Always `DKK` (Danish Krone)                      |
| `purchase_order`       | `cac:OrderReference/cbc:ID`                                                        | Buyer's order reference number                   |
| `buyer_reference`      | `cbc:BuyerReference`                                                               | Buyer's internal reference / EAN location number |
| `note`                 | `cbc:Note`                                                                         | Free-text payment instructions or notes          |
| `net_amount`           | `cac:LegalMonetaryTotal/cbc:TaxExclusiveAmount`                                    | Net amount excl. VAT                             |
| `tax_amount`           | `cac:TaxTotal/cbc:TaxAmount`                                                       | Total VAT amount (25% standard rate)             |
| `total_amount`         | `cac:LegalMonetaryTotal/cbc:PayableAmount`                                         | Total amount incl. VAT                           |
| `tax_rate`             | `cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cbc:Percent`                         | VAT rate in %                                    |
| `supplier_name`        | `cac:AccountingSupplierParty/cac:Party/cac:PartyName/cbc:Name`                     | Supplier company name                            |
| `supplier_id`          | `cac:AccountingSupplierParty/cac:Party/cac:PartyIdentification/cbc:ID`             | CVR number (e.g. `DK12345678`)                   |
| `supplier_vat`         | `cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyID`           | VAT/CVR number                                   |
| `supplier_address`     | `cac:AccountingSupplierParty/.../cbc:StreetName`                                   | Supplier street address                          |
| `supplier_city`        | `cac:AccountingSupplierParty/.../cbc:CityName`                                     | Supplier city                                    |
| `supplier_postal_code` | `cac:AccountingSupplierParty/.../cbc:PostalZone`                                   | Supplier postal code                             |
| `supplier_country`     | `cac:AccountingSupplierParty/.../cbc:IdentificationCode`                           | ISO country code (`DK`)                          |
| `customer_name`        | `cac:AccountingCustomerParty/cac:Party/cac:PartyName/cbc:Name`                     | Customer company name                            |
| `customer_id`          | `cac:AccountingCustomerParty/cac:Party/cac:PartyIdentification/cbc:ID`             | CVR number                                       |
| `customer_vat`         | `cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyID`           | VAT/CVR number                                   |
| `customer_address`     | `cac:AccountingCustomerParty/.../cbc:StreetName`                                   | Customer street address                          |
| `customer_city`        | `cac:AccountingCustomerParty/.../cbc:CityName`                                     | Customer city                                    |
| `customer_postal_code` | `cac:AccountingCustomerParty/.../cbc:PostalZone`                                   | Customer postal code                             |
| `customer_country`     | `cac:AccountingCustomerParty/.../cbc:IdentificationCode`                           | ISO country code (`DK`)                          |
| `iban`                 | `cac:PaymentMeans/cac:PayeeFinancialAccount/cbc:ID`                                | Bank account / IBAN                              |
| `bic`                  | `cac:PaymentMeans/cac:PayeeFinancialAccount/cac:FinancialInstitutionBranch/cbc:ID` | BIC/SWIFT code                                   |

### Line Item Table (`INVOICE_TABLE`)

Row path: `cac:InvoiceLine`

| Column        | Source XML Element          | Notes                   |
| ------------- | --------------------------- | ----------------------- |
| `POSITION`    | `cbc:ID`                    | Line sequence number    |
| `DESCRIPTION` | `cac:Item/cbc:Name`         | Item name / description |
| `QUANTITY`    | `cbc:InvoicedQuantity`      | Invoiced quantity       |
| `UNIT_PRICE`  | `cac:Price/cbc:PriceAmount` | Unit price excl. VAT    |
| `NET_AMOUNT`  | `cbc:LineExtensionAmount`   | Line total excl. VAT    |

## Classification Rule

DocBits detects OIOUBL 2.1 documents by matching the `CustomizationID` element:

| Electronic Document Type | Pattern                                                     |
| ------------------------ | ----------------------------------------------------------- |
| OIOUBL 2.1               | `<cbc:CustomizationID>OIOUBL-2\.1\s*</cbc:CustomizationID>` |

The root element is `<Invoice>` (or `<CreditNote>`) in the UBL 2.1 namespace `urn:oasis:names:specification:ubl:schema:xsd:Invoice-2`.

## Related

* [Currently Supported E-Invoice Standards](https://github.com/Fellow-Consulting-AG/docbits/blob/main/readme/administration-and-setup/settings/global-settings/document-types/currently-supported-e-invoice-standards/README.md)
* [Supported Electronic Documents](/administration-and-setup/settings/global-settings/document-types/edi/supported-electronic-documents.md)


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