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INVALID_IOU

Message. IOU failed schema validation

Hint. Re-encode the IOU envelope and retry. See the schema reference in the docs.

Wire shape

{
  "error": {
    "code": "INVALID_IOU",
    "message": "IOU failed schema validation",
    "hint": "Re-encode the IOU envelope and retry. See the schema reference in the docs.",
    "docsUrl": "https://docs.tollgatepay.com/errors/invalid-iou"
  }
}

Canonical URL

https://docs.tollgatepay.com/errors/invalid-iou — this URL is hard-coded into the 402/403/451 docsUrl field. It is stable; renaming the slug requires a migration plan.

Related codes