INVALID_SURCHARGE

When it happens

The equivalence surcharge rate is not one of the rates BeeL. accepts. The message gives the value sent and the accepted ones. A product and an invoice line answer the same code.

How to fix it

Send the surcharge rate that goes with the line's VAT rate, or none.

Retry

Not as is: the same request fails the same way. Fix the cause described above, then send the request again, under a new Idempotency-Key if the body changed.

Example response

When this error occurs, the API answers 422 Unprocessable Content with a JSON body of this shape:

{
  "type": "https://docs.beel.es/errors/INVALID_SURCHARGE",
  "title": "INVALID_SURCHARGE",
  "detail": "Invalid equivalence surcharge type: '‹value›'. Allowed values: ‹value›",
  "instance": "/v1/<resource>",
  "errors": [],
  "success": false,
  "error": {
    "code": "INVALID_SURCHARGE",
    "message": "Invalid equivalence surcharge type: '‹value›'. Allowed values: ‹value›",
    "details": {}
  },
  "meta": {
    "timestamp": "2026-05-21T10:00:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}

The type URI is stable and always resolves to this page.

Message

Send the request with Accept-Language: <es|en|ca> to receive the message in your preferred language.

Placeholders like ‹value› are filled in at runtime with the actual values of your request.

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