ErrorsAll codes
UUID_NULL
The VeriFactu UUID cannot be null
Category: VeriFactu
Example response
When this error occurs, the API returns a JSON response with the following shape:
{
"type": "https://docs.beel.es/errors/UUID_NULL",
"title": "UUID_NULL",
"detail": "The VeriFactu UUID cannot be null",
"instance": "/v1/<resource>",
"errors": [],
"success": false,
"error": {
"code": "UUID_NULL",
"message": "The VeriFactu UUID cannot be null",
"details": {}
},
"meta": {
"timestamp": "2026-05-21T10:00:00Z",
"request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
}
}The type URI is stable and always resolves to this page.
Message
The VeriFactu UUID cannot be null
El UUID de VeriFactu no puede ser nulo
L''UUID de VeriFactu no pot ser nul
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