Credit Note PA

Credit Note with reference to a previous Invoice

Description	Validation Rule
When document type is credit note	Reference to Invoice number must be included. The invoice must exist in Billit.
Duplicate Invoice Numbers	Duplicate Invoice Numbers are not allowed

Other remarks:

The invoice must exist in Billit, pracical approach:
- During transition phase, no Invoice might exist in Billit. solution :
  - step 1 : create Invoice in Billit, do not send it.
  - step 2 : create credit note. Billit will not prompt an error.
Linking a credit note to multiple related invoices :
- this is supported in France
- currently not yet supported by Billit

Credit Note with reference to a previous Invoice

Example of API content a Credit Note

{
    "OrderNumber": "227010068_Simple2",   //credit note number
    "OrderDate": "2026-05-06T00:00:00",   
    "ExpiryDate": "2026-06-04T00:00:00",  
    "OrderType": "CreditNote",  // when creditnote
    "AboutInvoiceNumber": "121254587",  //Reference to Invoice number : 1) mandatory in France and 2) Invoice must exist in Billit
    "OrderDirection": "Income",    
    "Reference": "4512345678",  
    "PaymentReference": "365878545",  
    "Comments": "additional info",  
    "Currency": "EUR",  
    "DeliveryDate": "2026-04-27T00:00:00",  
    "Customer": {
        "Nr": "0001001999", 
        "Name": "FR demo receive",
        "Addresses": [
            {
                "AddressType": "InvoiceAddress", 
                "Name": "FR demo receive",
                "Street": "place demo receive 987",
                "Zipcode": "75001",
                "City": "PARIS",
                "CountryCode": "FR" 
            },
            {
                "AddressType": "DeliveryAddress",  
                "Name": "FR demo receive",
                "Street": "place demo receive 987",
                "Zipcode": "75001",
                "City": "PARIS",
                "CountryCode": "FR"
            }
        ],
        "Mobile": "+32475366999",  
        "Email": "[email protected]", 
        "VATNumber": "FR37127399999",  
        "PartyType": "Customer",
        "VATLiable": true,  
        "Language": "FR",
        "Identifiers": [  
            {
                "IdentifierType": "CTC",
                "Identifier": "127369999_DEMO",
            },
            {
                "IdentifierType": "SIREN",
                "Identifier": "127362116",
            }
        ],
    },
    "OrderLines": [  //Credit Note : amounts must be positive
        {
            "Quantity": 1.0,
            "UnitPriceExcl": 400.0,
            "Description": "just a single line",
            "VATPercentage": 20.0,
            "Reference": "915025",  //Supplier Article Number
            "DescriptionExtended": "some extended description"
        }
    ]
}