---
title: "Checkout Opened"
method: POST
path: "/api/users/{user_id}/checkout-opened"
---

# Checkout Opened

`POST /api/users/{user_id}/checkout-opened`

## Request

- Base URL: `https://api.adplug.app` (the document declares no server; this is the origin it was published from)
- URL: `https://api.adplug.app/api/users/{user_id}/checkout-opened`
- Auth: HTTP bearer

The browser opened a Paddle checkout for a paid plan.

Queues the founder note Resend sends a few hours later if the user is still
on Free (one per account, deduped on the contact). Free users only.

## Path parameters

- `user_id` string, required

## Request body

- object

## Response `204`

Successful Response

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/adplug/apis/adplug-api.md) · [All operations](https://skmtc.dev/adplug/apis/adplug-api/llms.txt) · [OpenAPI document](https://skmtc.dev/adplug/apis/adplug-api/revisions/47dbef2d7c84?raw)