# Test and troubleshoot Yolfi (https://talivia.com/docs/revenue-guides/yolfi/testing-and-troubleshooting)



## Test a payment [#test-a-payment]

1. [Connect Yolfi](https://talivia.com/docs/revenue-guides/yolfi#connect-yolfi).
2. Open checkout from a page with the Talivia tracker installed.
3. Complete a payment and return to your site.
4. Confirm the payment appears in Talivia with the expected traffic source.

## The connection fails [#the-connection-fails]

* Create a new key in [Yolfi API settings](https://app.yolfi.com/settings/api-keys).
* Confirm the key belongs to the organization you want to connect.
* Paste the new key into Talivia and connect again.

## No payment appears [#no-payment-appears]

Confirm that Yolfi is still connected in **Website Settings → Payments**, then complete a new test
payment. You do not need to add a website ID or Talivia metadata to the payment.

## The payment is unattributed [#the-payment-is-unattributed]

Confirm that your success page has the Talivia tracker and that the redirect URL contains:

```text
https://merchant.example/thanks?session_id={CHECKOUT_SESSION_ID}
```

For renewals, the first subscription payment must be matched before later payments can reuse its
attribution.