ErrorsAll codes
INVOICE_NO_NUMBER
The invoice does not have an assigned number
Category: VeriFactu
Example response
When this error occurs, the API returns a JSON response with the following shape:
{
"type": "https://docs.beel.es/errors/INVOICE_NO_NUMBER",
"title": "INVOICE_NO_NUMBER",
"detail": "The invoice does not have an assigned number",
"instance": "/v1/<resource>",
"errors": [],
"success": false,
"error": {
"code": "INVOICE_NO_NUMBER",
"message": "The invoice does not have an assigned number",
"details": {}
},
"meta": {
"timestamp": "2026-05-21T10:00:00Z",
"request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
}
}The type URI is stable and always resolves to this page.
Message
The invoice does not have an assigned number
La factura no tiene número asignado
La factura no té un número assignat
Send the request with Accept-Language: <es|en|ca> to receive the message in your preferred language.
Other errors in this category
ALREADY_DISABLED
VeriFactu is already disabled for this user
ALREADY_ENABLED
VeriFactu is already enabled for this user
ALREADY_REGISTERED
The NIF is already registered in VeriFactu
API_COMMUNICATION_ERROR
Error communicating with the VeriFactu API
API_KEY_NOT_CONFIGURED
The VeriFactu API key has not been configured