# Express button

## Express button gives shoppers a fast and convenient way to buy with Klarna.

## How does Express button work?

When a customer click on the Express button and successfully signs in, they will be redirected to checkout with:

- Pre-filled customer and address data
- Default shipping method (first available by sort order set in **Admin Stores**\> **Configuration**\> **Sales**\> **Delivery Methods**)
- Klarna as a preselected payment method

The checkout experience is designed and optimized for the Klarna payments integration flow.

For more information about Express button, \[ refer to the product documentation\].

Before you enable Express button in your store, complete the [prerequisites](https://docs.klarna.com/express-button/) including [allowlisting production merchant IDs](https://docs.klarna.com/express-button/#allowlisting).

## Configuration

To enable Express button in your store, go to **Stores**\> **Configuration**\> **Sales**\> **Payment Methods**\> **Klarna**\> **Klarna Express Button**:


![Screenshot of the configuration.](40507a1f-ExpressButton_Magento_Cart.jpeg)
*Screenshot of the configuration.*

In this menu, apart from enabling the button, you can also change the button’s design. For more details, refer to the [Express button customization guide](https://docs.klarna.com/conversion-boosters/express-checkout/additional-resources/button-styling/).


![ You can customize the Express button's design to match your store's look-and-feel.](f20d1c34-ebd0-40d2-ad04-16f716abbeac_Magento.jpeg)
*You can customize the Express button's design to match your store's look-and-feel.*