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EXPIRED_IOU

Message. IOU deadline is in the past (or outside the clock-skew window)

Hint. Issue a fresh IOU with a deadline within 120s of now.

Wire shape

{
  "error": {
    "code": "EXPIRED_IOU",
    "message": "IOU deadline is in the past (or outside the clock-skew window)",
    "hint": "Issue a fresh IOU with a deadline within 120s of now.",
    "docsUrl": "https://docs.tollgatepay.com/errors/expired-iou"
  }
}

Canonical URL

https://docs.tollgatepay.com/errors/expired-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