# Custom Fields by Addify

[YayMail Addon for Custom Fields by Addify](https://yaycommerce.com/yaymail-addons/yaymail-addon-for-custom-fields-by-addify/) allows you to customize templates generated by Custom Fields by Addify in YayMail interface.

**REQUIRED: In addition to these two plugins, here are the WordPress plugins you'll need for this guide.** 

* WooCommerce
* YayMail (free/pro)
* [Custom Fields for WooCommerce by Addify](https://woocommerce.com/products/custom-fields-for-woocommerce/)
* [YayMail Addon for Custom Fields by Addify](https://yaycommerce.com/yaymail-addons/yaymail-addon-for-custom-fields-by-addify/)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.yaycommerce.com/yaymail/addons/custom-fields-by-addify.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.