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Unauthorized

Understand the SumUp API Unauthorized response, common causes, and example payload for invalid or expired credentials.

Indicates that the request lacks valid authentication credentials for the target resource.

Common Causes

Section titled “Common Causes”
  • The access token is missing or empty.
  • The access token is expired or revoked.
  • The token is for a different environment or app.
{
  "type": "https://developer.sumup.com/problem/unauthorized",
  "status": 401,
  "detail": "Unauthorized"
}