409 Conflict - Session Can't Be Deactivated

Indicates checkout session can't be cancelled due to a pending Boleto payment.

{
  "type": "https://developer.sumup.com/docs/problem/session-cant-be-deactivated/",
  "title": "Conflict",
  "status": 409,
  "detail": "The checkout can't be cancelled due to a pending Boleto payment",
  "error_code": "CHECKOUT_CANT_BE_DEACTIVATED",
  "message": "The checkout can't be cancelled due to a pending Boleto payment",
  "instance": "8aeafaccae28"
}