> For the complete documentation index, see [llms.txt](https://docs.coda.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coda.co/https-coda-payments.gitbook.io-zhong-wen-coda-private-technical-documentation/codapay/codapay-jie-ru-chang-jian-wen-ti/tui-kuan-api.md).

# 退款 API

#### 1. 哪些交易 **不支持** 退款 API？

* Coda 后台记录为失败，但用户实际上已被扣款的交易
* Codashop 的交易

***

#### 2. 退款的时间限制是多少？

退款必须在交易完成后的 <mark style="color:purple;">**14 天内**</mark> 提出请求。

***

#### 3. 从发起退款请求到最终退款状态更新的处理时效是多少？

<mark style="color:purple;">**3 个工作日**</mark>内。

***

#### 4. `amount_currency` 和 `amount_value` 是什么？

指的是原始支付所使用的本地货币与金额。

***

#### 5. 哪些支付渠道支持退款？

请参考此[列表](https://coda-payments.gitbook.io/zhong-wen-coda-private-technical-documentation/codapay/tui-kuan-api/zhi-chi-de-zhi-fu-qu-dao)。若不支持该支付渠道，系统将返回 **"Failed"** 状态。\
如有疑问，请联系 Codapay 支持团队。

***

#### 6. 是否支持 Sandbox 测试？

支持，若需要模拟退款的通过或拒绝，商家需提供 **Coda transaction ID**，由 Coda 团队手动更新退款状态。


---

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