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Multiple Invalid Parameters

Understand the SumUp API Multiple Invalid Parameters response, common causes, and example payload for requests with several invalid fields.

Indicates that the server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

Common Causes

Section titled “Common Causes”
  • Multiple fields fail validation in the same request.
  • Mutually exclusive parameters are provided together.
  • A nested object contains one or more invalid fields.
[
  {
    "error_code": "INVALID",
    "message": "Validation error",
    "param": "card.name"
  },
  {
    "error_code": "INVALID",
    "message": "Validation error",
    "param": "card.number"
  },
  {
    "error_code": "INVALID",
    "message": "Validation error",
    "param": "card.expiry_year"
  }
]