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SumUp Developer

Checkout Not Found

Understand the SumUp API Checkout Not Found response, common causes, and example payload for unknown checkout resources.

Indicates that the server can’t find the requested checkout resource.

Common Causes

Section titled “Common Causes”
  • The checkout ID is incorrect or does not exist.
  • The checkout belongs to a different merchant.
{
  "type": "https://developer.sumup.com/problem/checkout-not-found",
  "title": "Not Found",
  "status": 404,
  "detail": "A checkout session with the id 61b06d01-ffc4-4432-9053-2ea587f735b1 does not exist"
}