Unsuccessful calls return a `200` response with a field called `success` as `false` and an `error` object.

Information about what went wrong and how to troubleshoot.

Code for this error. See [list of error codes](/api-reference/intro/api-error-codes).

Information about the error as a human-readable string.

`false` to indicate there's a problem with this request.

Error

#### List all coupons valid for a specified one-time product or subscription plan

**Example Request**
```
curl -X POST -d 'vendor_id=1234567' \
             -d 'vendor_auth_code=123456abc...' \
             -d 'product_id=12345' \
https://vendors.paddle.com/api/2.0/product/list_coupons
```

Product API

#### List all coupons valid for a specified one-time product or subscription plan

**Example Request**
```
curl -X POST -d 'vendor_id=1234567' \
             -d 'vendor_auth_code=123456abc...' \
             -d 'product_id=12345' \
https://vendors...

List Coupons

API Reference

Quick Start

API Authentication

API Error Codes

Overview

APIs

Checkout API

Get Order Details

Order Details

Get User History

User History

Get Prices

Prices

Create Coupon

Delete Coupon

Update Coupon

Coupons

List Products

Products

Generate License

Licenses

Generate Pay Link

Pay Links

List Transactions

Transactions

Refund Payment

Payments

Subscription API

List Plans

Plans

List Users

Update User

Cancel User

Update Postcode

Users

List Modifiers

Create Modifier

Delete Modifier

Modifiers

List Payments

Reschedule Payment

Create One-off Charge

One-off Charges

Alert API

Get Webhook History

Webhooks

List Coupons

List all coupons valid for a specified one-time product or subscription plan

Request

Body