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Errors

INVALID_REQUEST — 400 Bad Request

400 Bad Request

The request body or parameters are invalid. Check the errorCode and errors fields for details.

Categories

This status code may appear with several error categories depending on the domain error:

Category	Error Codes	What To Do
validation	CART_EMPTY, MODIFIER_REQUIRED, ORDER_BELOW_MINIMUM, ORDER_TOTAL_DIFFERENT, ADDRESS_INVALID, ADDRESS_OUT_OF_RANGE, CATALOGSET_REQUIRED	Fix the request based on the error code and retry
availability	STORE_CLOSED, ITEM_UNAVAILABLE	Re-discover available resources
payment	PAYMENT_FAILED, PAYMENT_METHOD_INVALID, PAYMENT_DECLINED	Use a different payment method or contact support

Retryable?

Generally no — the request itself must be corrected. Exception: PAYMENT_FAILED may be retried (transient processor error).

Example

Code
{
  "type": "https://developer.gett-tech.com/errors/CART_EMPTY",
  "title": "Bad Request",
  "status": 400,
  "detail": "The cart has no items.",
  "instance": "/v1/marketplace/orders/validate",
  "requestId": "req_abc123",
  "timestamp": "2026-03-11T14:30:00.000Z",
  "errorCode": "CART_EMPTY",
  "errorCategory": "validation",
  "retryable": false
}