# Source: https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/conversion-boosters/how-to-enable-express-checkout-in-prestashop.md

# How to enable Express checkout in PrestaShop

## This guide explains how to add Express Checkout to your PrestaShop store.

## What is Express Checkout?

Express Checkout gives your customers a fast and convenient way to purchase with Klarna. Partners who have integrated Express Checkout see an improved customer experience, increased conversion rates, and a higher average order value.

To learn more about Express Checkout, refer to the [product documentation](https://docs.klarna.com/express-checkout/).


![ When you add Express Checkout to the store, a button prompting customers to pay with Klarna is displayed in checkout.](51bda528-9267-4a78-87d7-5718d61482fa-KEC-Example.jpeg)
*When you add Express Checkout to the store, a button prompting customers to pay with Klarna is displayed in checkout.*

## Prerequisites

To be able to offer Express Checkout, you have to first enable Klarna in your PrestaShop store by installing the [Klarna Payments for Prestashop](https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/payments/klarna-payments-in-prestashop/) plugin.

## Install Express Checkout in PrestaShop

To install Express checkout in a PrestaShop store, follow these steps:

1\. In the **Klarna Merchant portal**, go to **Payment settings**\> **Client identifiers**. There you can click **Manage origins** and enter your store's URL in the **Register new origin** section.

2\. Proceed to add your store's URL to the allow list (**Register new origin**) and to generate the Klarna Client ID.


![ To use Express Checkout in your Prestashop store, you have to allowlist your store's URL.](4d4622ee-d3d5-447e-9cbd-0193cdd2a65d_Whitelisting.jpeg)
*To use Express Checkout in your Prestashop store, you have to allowlist your store's URL.*

Later, you can also manage your **Allowed origins for your integrations** in **Payment settings**\> **Client identifiers**. There you can click **Manage origins** and enter your store's URL in the **Register new origin** section.


![ You can manage allowed origins in Payment settings.](af9e9cd4-44f4-4179-8287-87f3c7d49937-Allowed-origin.jpeg)
*You can manage allowed origins in Payment settings.*

3\. Click on **Generate client identifier** in the Client identifiers menu, then copy it from the **Client ID**field.


![ The generated Client ID links your Klarna merchant account to your PrestaShop store.](b1f1f769-0f32-4b2f-81b4-83555781d458-image.jpeg)
*The generatedClient IDlinks your Klarna merchant account to your PrestaShop store.*

4\. In your PrestaShop admin, go to the "Credentials" section for the Klarna plugin settings, paste the **Client ID** you copied in the **Klarna Client Identifier** field. Make sure the ID doesn't contain any quotes or whitespace.


![ A screenshot of the PrestaShop Klarna payment plugin settings for Klarna Express Checkout.](ZuNNdbVsGrYSvUK4_ExpressCheckoutforPrestaShop.jpeg)
*A screenshot of the PrestaShop Klarna payment plugin settings for Klarna Express Checkout.*

5\. Toggle the **Enable Klarna Express Checkout** option to enable the Express Checkout in the Klarna payments plugin.

## Customize the Express Checkout button

You can customize the Express Checkout button by choosing a [theme](https://docs.klarna.com/conversion-boosters/express-checkout/additional-resources/button-styling/#theme) and a [shape](https://docs.klarna.com/conversion-boosters/express-checkout/additional-resources/button-styling/#button-shape). The styling options are available in the PrestaShop plugin settings.

6\. From the **Theme** dropdown, select a theme for the button — dark, light, or outlined.

7\. From the **Shape** dropdown, select a shape for the button — rounded, pill, rectangular.