# Cost Calculator Hooks

A hook is a piece of code that programmers use to change or extend applications or operating systems by catching and working with messages or events that happen inside them. 

#### Where to put your code?

If you want to add a special piece of code to your website, you can place it in the [WPCode ](https://wordpress.org/plugins/insert-headers-and-footers/)plugin, your child theme's functions.php, or your own custom plugin.

Before you make any changes to the code, make sure you have FTP access in case there are mistakes.

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Important: This guide has PHP code and is meant for developers. We share the code as a friendly gesture but don't provide support for code customization or third-party development.
{% endhint %}

There are lists of hooks used in the Cost Calculator plugin for:

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Order Management Hooks</strong></td><td>These hooks let developers customize Orders in the Cost Calculator.</td><td></td><td><a href="cost-calculator-hooks/order-management">order-management</a></td><td><a href="https://834137925-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MDTO7zmTA5-HpvK8JDA%2Fuploads%2FLU8VOx4nTnHsqM4Zkka0%2Forders-ccb.jpeg?alt=media&#x26;token=6051a290-e1bf-424b-a3a2-ed16677a0bdd">orders-ccb.jpeg</a></td></tr><tr><td><strong>Contact Form Hooks</strong></td><td>These hooks let developers customize Contact Form in the Cost Calculator.</td><td></td><td><a href="cost-calculator-hooks/contact-form">contact-form</a></td><td><a href="https://834137925-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MDTO7zmTA5-HpvK8JDA%2Fuploads%2FVIDUxGlC50IltXhciP6H%2FCost%20Calculator%20WordPress%20Plugin%20_%20Price%20Estimation%20Calculator%20-%20YouTube.png?alt=media&#x26;token=3239f9d2-d120-4791-8c4c-ed1e32cadb6d">Cost Calculator WordPress Plugin _ Price Estimation Calculator - YouTube.png</a></td></tr><tr><td><strong>Confirmation Page Hooks</strong></td><td>These hooks let developers customize Confirmation Page in the Cost Calculator.</td><td></td><td><a href="cost-calculator-hooks/confirmation-page">confirmation-page</a></td><td><a href="https://834137925-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MDTO7zmTA5-HpvK8JDA%2Fuploads%2FuANNnTf9KrSWtBY3h6l4%2Ffb-instag-banner-success-A%20(1).png?alt=media&#x26;token=f85ce137-a1c0-4ce8-a4d6-9ccad7a79144">fb-instag-banner-success-A (1).png</a></td></tr><tr><td><strong>Email Hooks</strong></td><td>These hooks let developers customize Email in the Cost Calculator.</td><td></td><td><a href="cost-calculator-hooks/email">email</a></td><td><a href="https://834137925-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MDTO7zmTA5-HpvK8JDA%2Fuploads%2Fb0RUDZStqp80bKo57r9B%2FEmail%20Template_FB.png?alt=media&#x26;token=aeec8b64-0631-4525-a5d2-421b83041dc3">Email Template_FB.png</a></td></tr></tbody></table>