SendInvoicesB2G¶

E-invoice to a public sector body in Greece (EN 16931). The guide, with the values to use for testing: Public sector (B2G).

POST {baseUrl}/api/v1/Provider/SendInvoicesB2G

The body is the same as for SendInvoices (one document per call), with these differences:


Allowed types	1.1, 1.6, 2.1, 2.4, 3.1, 3.2, 5.2, 6.1, 6.2, 7.1
Payment	`paymentMethods[].type` = `5` (on credit)
Taxes	Withholding tax, fees, other taxes, digital transaction fee and deductions only in `taxesTotals`
Extra object	`providerB2gAdditionalInvoiceDetails` (required)
Extra line fields	`QuantityUnitsUblCode`, `itemClassificationIdentifiers`, `itemCodification` (required)
Activation	Separately for each customer (VAT number, ΑΦΜ), by Novus.
Credits	1 per invoice, from the separate B2G balance (not from your Provider API credits)
Testing	You need a separate B2G sandbox API key. Ask Novus for it.

providerB2gAdditionalInvoiceDetails¶

Field	BT	Type	Description
`contractReference`	BT-12	string	Contract ID (ΑΔΑΜ) in the public procurement register (ΚΗΜΔΗΣ). `"0"` if there is none. Empty on a credit note.
`purchaseOrderReference`	BT-13	string	Purchase order number of the public body.
`buyerReference`	BT-10	string	The department of the public body that receives the invoice.
`buyerLegalRegistrationIdentifier`	BT-47	string	Legal registration identifier of the buyer.
`buyerIdentifiers[].buyerIdentifier`	BT-46	string	Routing: the Contracting Authority Code from the Register of Contracting Authorities, e.g. `1007.909.0001`.
`budget.type`	BT-11	integer	`1` Regular Budget, `2` Public Investment Programme (ΠΔΕ), `3` other.
`budget.identifier`	BT-11	string	For 1 and 3: the ΑΔΑ (Diavgeia decision number) of the budget commitment. For 2: the project registration number (Ενάριθμος). On a credit note with 1 or 3: empty.
`credits[].accountIdentifier`	BT-84	string	IBAN of the issuer.
`credits[].accountName`	BT-85	string	Account holder.
`credits[].serviceProviderIdentifier`	BT-86	string	BIC of the bank.
`dueDate`	BT-9	date	Payment due date.
`partyName`	BT-70	string	Who the goods or services are delivered to.
`vatPaidByBuyer`	—	boolean	Optional.
`deliveryDetails.street` / `city` / `postalCode`	BT-75/77/78	string	Delivery address.

Field	BT	Description
`QuantityUnitsUblCode`	BT-130	Unit of measure per UN/ECE Rec. 20 (e.g. `EA`, `KGM`, `LTR`, `HUR`).
`itemClassificationIdentifiers[]`	BT-158	The CPV code of the item, as an object with: `classificationIdentifier` (the CPV code, e.g. `15555100-4`), `classificationIdentifierScheme` (`STI` for CPV) and `classificationIdentifierSchemeVersion` (e.g. `2008`).
`itemCodification`	BT-153	Short item name.

Examples: B2G guide.