Testing & Troubleshooting
Test checklist
- A test payment in sandbox mode is confirmed.
- A successful payment marks the order as paid.
- A failed payment leaves the order pending.
- A duplicate confirmation does not double-credit.
Common problems
| Symptom | Likely cause | Fix |
|---|---|---|
| Order stays pending | Notification URL not reachable | Check the public URL and firewall |
| Payment rejected | Wrong shop ID or secret key | Re-enter the credentials |
| No YooMoney option at checkout | Gateway not enabled | Enable it in checkout settings |
Refunds
Refunds are handled in your YooMoney dashboard. Always refund through the same method the buyer used.
Still stuck?
Our support team is ready to help you get set up.

