# Session Can't Be Deactivated

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

## Common Causes

- A Boleto payment is still pending for the checkout.
- The checkout is in a non-cancellable state.
- A payment authorization is already in progress.

```json
{
  "type": "https://developer.sumup.com/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"
}
```