> ## Documentation Index
> Fetch the complete documentation index at: https://doc.haipay.net/llms.txt
> Use this file to discover all available pages before exploring further.

# Payout Order Voucher

> Retrieve the payout order voucher image.

**URL:**

`/common/voucher`

**Parameters:**

| Parameter | Required | Type | Description |
| - | - | - | - |
| appId | Yes | Long | Business ID (obtained from the backend) |
| orderNo | Yes | Long | Platform order ID |
| sign | Yes | String | Signature |

**Response Data:**

* The base64 encoded image of the voucher.

## Related Topics

* [HaiPay API Description and Common Rules](https://doc.haipay.net/en/history/V20260801/get-started/api-conventions.md)
* [Common API — Payout Voucher (POST /common/voucher)](https://doc.haipay.net/en/history/V20260801/api-reference/common/voucher.md)
* [Common API — Voucher PDF/ZIP (POST /common/voucher/pdf)](https://doc.haipay.net/en/history/V20260801/api-reference/common/voucher-pdf.md)
* [Payout Voucher PDF/ZIP API](https://doc.haipay.net/en/history/V20260801/operations/voucher-pdf.md)
* [Configure Merchant Keys and RSA Signature Rules](https://doc.haipay.net/en/history/V20260801/get-started/configuration-and-signatures.md)


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