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Invalid Token

Understand the SumUp API Invalid Token response, common causes, and example payload for malformed or unusable access tokens.

Indicates that the request has not been applied because it lacks valid authentication credentials for the target resource.

Common Causes

Section titled “Common Causes”
  • The access token has expired.
  • The token has been revoked or is no longer valid.
  • The token belongs to a different app or environment.
{
  "error_message": "invalid access token",
  "error_code": "NOT_AUTHORIZED"
}