> This page is for Afterpay.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developers.cash.app/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.cash.app/_mcp/server.

# Older Messaging Information

## New Merchants

We recommend that all new merchants use our current [On-Site Messaging](/cash-app-afterpay/guides/afterpay-messaging/getting-started) product.

## Existing Afterpay Merchants

We currently support two messaging products.

[On-Site Messaging](/cash-app-afterpay/guides/afterpay-messaging/getting-started) is our current messaging product, and our previous product is messaging from the [JavaScript Library](/cash-app-afterpay/guides/afterpay-messaging/older-messaging-information-and-links).

If you want to migrate from the JavaScript Library messaging to the current On-Site messaging product, see the information on the [Upgrade to On-Site Messaging](/cash-app-afterpay/guides/afterpay-messaging/migration) page.

### Brand Transition

**On-Site Messaging**

If you use On-Site Messaging, it will be updated automatically.

**JavaScript Library**

If you use the JavaScript library for your messaging, it will be updated automatically.

## JavaScript Library Messaging

You can find links to our previous messaging products and features, including the JavaScript library here.

> **Warning**
>
> The products and features listed here are only partially supported. All Afterpay merchants with a direct integration should use On-Site Messaging for on-site messaging. See [Getting Started with On-Site Messaging](/afterpay/guides/afterpay-messaging/getting-started) and [Upgrade to On-Site Messaging](/cash-app-afterpay/guides/afterpay-messaging/migration) for more details.

## Links

### JavaScript Library

* [JavaScript Library introduction](JavaScript-Library.mdx)

* [Style Messaging](Style-Messaging.mdx)

* [Advanced Usage](Advanced-Usage.mdx)

* [Pay Monthly Enhanced Javascript Library Features](Pay-Monthly-enhanced-JavaScript-library-features.mdx)

* [Afterpay.js Reference](Afterpay-js-Reference.mdx)