> For the complete documentation index, see [llms.txt](https://developers.primeiropay.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.primeiropay.com/getting-started/server-to-server-api/reversal-1.md).

# Reversal

 A reversal is performed against a previous payment, referencing its `payment.id` by sending a POST request over HTTPS to the /payments/{id} endpoint. A reversal can be sent against debit (DB) or preauthorization (PA) payment types. When reversing a card payment and if sent within 72 hours of the original request, a reversal causes an authorization reversal request to be sent the card issuer to clear the funds held against the authorization.

Example:

```
curl https://test.oppwa.com/v1/payments/{Payment ID} \
 -d "entityId=8ac7a4ca6db97ef1016dbe9214e70aac" \
 -d "paymentType=RV" \
 -d "testMode=EXTERNAL" \ Test Evroment Only
 -H "Authorization: Bearer OGFjN2E0Y2E2ZGI5N2VmMTAxNmRiZTkwZTMxZDBhYTh8WENkRUs0NHJubQ=="
```

{% file src="/files/-MGhgs8RMytpsrPUGOmu" %}
Reversal Json Request
{% endfile %}