ErrorsAll codes
INVALID_EXTENSION
File extension not allowed
Category: General
Example response
When this error occurs, the API returns a JSON response with the following shape:
{
"type": "https://docs.beel.es/errors/INVALID_EXTENSION",
"title": "INVALID_EXTENSION",
"detail": "File extension not allowed",
"instance": "/v1/<resource>",
"errors": [],
"success": false,
"error": {
"code": "INVALID_EXTENSION",
"message": "File extension not allowed",
"details": {}
},
"meta": {
"timestamp": "2026-05-21T10:00:00Z",
"request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
}
}The type URI is stable and always resolves to this page.
Message
File extension not allowed
Extensión de archivo no permitida
Extensió de fitxer no permesa
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
CONFIGURATION_INVALID
The configuration is not valid
FIELD_BLANK
The field ''{0}'' cannot be empty
FILE_CORRUPTED
File is damaged or corrupt
FILE_EMPTY
The file is empty