Validation Error

Code: VALIDATION_FAILEDStatus: 400 Bad Request

One or more fields in the request body failed validation.

Response

{
  "type":     "https://docs.comprobify.com/errors/validation-error",
  "title":    "Validation Failed",
  "status":   400,
  "code":     "VALIDATION_FAILED",
  "detail":   "Validation failed",
  "instance": "/v1/documents",
  "errors": [
    {
      "field":   "buyer.email",
      "message": "Buyer email is required and must be a valid email address",
      "code":    "buyer.email",
      "value":   "not-an-email"
    },
    {
      "field":   "items[0].quantity",
      "message": "Item quantity must be numeric",
      "code":    "items.quantity",
      "value":   "abc"
    }
  ]
}

What to do

Check the errors array. Each entry identifies the field that failed (field), what went wrong (message), and the value that was submitted (value).

The code on each entry is the field path with array indices stripped — use it as a stable key for field-level localized messages in your client:

const fieldMessages = {
  'buyer.email':    'El correo del comprador es inválido.',
  'items.quantity': 'La cantidad debe ser un número.',
};