---
layout: m1x_soap
title: Cart Coupon
---
				    
				    <h2><a name="MAPI-CartCoupon-Module%3AMageCheckout"></a>Module: Mage_Checkout</h2>

<p>The Mage_Checkout module allows you to manage shopping carts and the checkout process. This module allows you to create an order once filling the shopping cart is complete.</p>

<h4><a name="MAPI-CartCoupon-CartCoupon"></a>Cart Coupon</h4>

<p>Allows you to add and remove coupon codes for a shopping cart.</p>

<p><b>Resource Name</b>: cart_coupon</p>

<p><b>Methods</b>:</p>
<ul>
	<li><a href="cart_coupon.add.html" title="cart_coupon.add">cart_coupon.add</a><font color="#000000">&nbsp;&#45; Add a coupon code to a quote</font></li>
	<li><a href="cart_coupon.remove.html" title="cart_coupon.remove">cart_coupon.remove</a><font color="#000000">&nbsp;&#45; Remove a coupon code from a quote</font></li>
</ul>


<p><b>Note</b>: In Magento, quotes and shopping carts are logically related, but technically different. The shopping cart is a wrapper for a quote, and it is used primarily by the frontend logic. The cart is represented by the Mage_Checkout_Model_Cart class and the quote is represented by the Mage_Sales_Model_Quote class.</p>

<h4><a name="MAPI-CartCoupon-Faults"></a>Faults</h4>


<table><tbody>
<tr>
<th> Fault Code </th>
<th> Fault Message </th>
</tr>
<tr>
<td> <font color="#555555">1001</font> </td>
<td> <font color="#555555">Can not make operation because store is not exists</font> </td>
</tr>
<tr>
<td> <font color="#555555">1002</font> </td>
<td> <font color="#555555">Can not make operation because quote is not exists</font> </td>
</tr>
<tr>
<td> <font color="#555555">1081</font> </td>
<td> <font color="#555555">Coupon could not be applied because quote is empty.</font> </td>
</tr>
<tr>
<td> <font color="#555555">1082</font> </td>
<td> <font color="#555555">Coupon could not be applied.</font> </td>
</tr>
<tr>
<td> <font color="#555555">1083</font> </td>
<td> <font color="#555555">Coupon is not valid.</font> </td>
</tr>
</tbody></table>