ErrorsAll codes
MISSING_HEADER
A required request header is missing.
Category: General
Example response
When this error occurs, the API returns a JSON response with the following shape:
{
"type": "https://docs.beel.es/errors/MISSING_HEADER",
"title": "MISSING_HEADER",
"detail": "A required request header is missing.",
"instance": "/v1/<resource>",
"errors": [],
"success": false,
"error": {
"code": "MISSING_HEADER",
"message": "A required request header is missing.",
"details": {}
},
"meta": {
"timestamp": "2026-05-21T10:00:00Z",
"request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
}
}The type URI is stable and always resolves to this page.
Message
A required request header is missing.
Falta una cabecera obligatoria en la petición.
Falta una capçalera obligatòria a la petició.
Send the request with Accept-Language: <es|en|ca> to receive the message in your preferred language.
Other errors in this category
AUTOMATIC_EMAIL_CONFIG_INVALID
For automatic sending, you must provide an email configuration or a client with email
BAD_REQUEST
The provided data is not valid.
BUSINESS_RULE_VIOLATION
The operation breaks a business rule.
CONFIGURATION_INVALID
The configuration is not valid
ENDPOINT_NOT_FOUND
The requested endpoint does not exist.