Klarna Docs - Configuration


Learn about configuration options available for the Klarna checkout module.

Integrate Klarna checkout quickly by changing a few settings in the Admin. For further configuration, use advanced options as needed.

The Klarna checkout module is also extensible and allows merchants to easily enhance and customize certain features to fit specific needs.

Adobe Commerce uses a base currency that is configured at the website level (not store view) along with tax configuration done at the website level (not store view). To avoid rounding and mismatch issues we only work with base currency and do not support using display currency (which is used by the currency switcher). 

If you want to support multiple currencies, you need to setup multiple websites (with different URLs, configured in the shop admin at the Website level, not store view) for each currency.

After installation of the Klarna checkout module, you need to adjust a few settings to enable Klarna checkout.

These settings can be found by following the Admin navigation path of: Stores > Configuration > Sales > Payment Methods > Klarna > Klarna API.

API Version (Endpoint)The API version you should connect to. This is based on your region.
Merchant IDYour merchant ID for API interaction. (Provided to you by Klarna)
Shared secret (Password)Your private password for API interaction. (Provided to you by Klarna)
Test Mode (Mode)Credentials are specific to each environment. Select Disabled (Production) for Live
Debug Mode (Logging)API requests to Klarna are logged in the default log directory. (Should not be enabled on production. Sensitive information is logged.)

Additional options can be configured for Klarna checkout to adjust checkout behavior. You can find these settings in the Admin under the following paths:

  • Stores > Configuration > Sales > Checkout > Klarna Checkout
  • Stores > Configuration > Sales > Payment Methods > Klarna > Klarna Checkout

Restriction of checkout by customer group

Klarna checkout can be restricted to select customer groups.

To restrict Klarna checkout from selected customer groups, select the groups in the Admin. All non-selected groups will be presented with your existing checkout. If no groups are selected, all customers will be directed to Klarna checkout.

External payment methods

Alternative payment methods can be displayed within Klarna checkout as an alternative to Klarna’s standard offering. These options will appear when the customer chooses a payment method before completing the purchase.

Note that only certain external payment methods are supported by Klarna checkout (e.g. PayPal, Vipps, and more)

Klarna checkout won't appear until the payment method is enabled. The Klarna checkout module has several additional features that you can enable and configure to modify the checkout experience.

Payment configuration

Payment settings is configured in the Admin under the following path:

Stores > Configuration > Sales > Payment Methods > Klarna > Klarna Checkout

Enable this SolutionWhether or not to use Klarna checkout
New order statusStatus that an order gets set to after fraud processing has completed
Shipping CountriesSupported shipping countries for Klarna
Disable Klarna for specific customer groupsSelected groups will see standard checkout instead of Klarna checkout
External Payment MethodsAdditional payment methods not processed through Klarna, for example, PayPal, that can be included on the Klarna checkout page. Make sure to enable the specific payment method first for it to show up in the list. See the External payment methods section above for more info on adding custom payment methods.

Checkout options

You can configure checkout options under the following path in the Admin:

Stores > Configuration > Sales > Checkout > Klarna Checkout Options

Merchant CheckboxA checkbox will be added to Klarna checkout that will trigger the event selected before order is placed.
Merchant Checkbox TextPredefined checkbox options will have label text by default. Use this field to override the default text. Leave blank to use default text.
Merchant Checkbox RequiredSelect if the checkbox is required to place the order. Not required by default.
Merchant Checkbox CheckedSelect if the checkbox should be checked by default. Not checked by default.
Allow Guest CheckoutUsed to determine if guest customers should be offered  the Klarna checkout. If set to Yes, guest customer will be allowed to checkout with Klarna.
URL to terms and conditionsThe URL to your terms and conditions. This is required in all markets. If left empty, Klarna checkout will fail to initialize.
URL to cancellation termsThe URL to your cancellation terms and conditions. This is only applicable in the DACH market. Field is ignored if left blank.
URL to redirect for checkout failuresMust be a fully qualified URL. If left blank, defaults to the cart URL. Useful for redirecting checkout failures to a specific page other than the shopping cart
Shipping methods in iframeDisplay shipping methods inside the Klarna iframe. This is ignored and forced to 'no' in some markets. This is ignored and forced to "yes" if Shipping assistant is enabled
Packstation EnabledOnly applicable to the DACH market. Enables support for Packstation. Forces Separate shipping address to Yes by ignoring the value specified in that setting.
Separate shipping addressesUsed to enable shipping address to be different than billing address
Auto focus Klarna CheckoutFocus will automatically be set to the Klarna checkout on load. This allows for entry of customer details without requiring the customer to move their mouse.
Pre-fill Customer DetailsPrefill Klarna checkout with stored customer data.
Customer pre-fill noticeDisplay a pre-fill notice to registered customer before submitting details to Klarna. The customer must accept the notice to have their account details shared with Klarna.
Title mandatoryRequires that the customer specifies title (not supported in all markets)
Date of birth mandatoryRequires that the customer enters the date of birth (not supported in all markets).
National Identification number mandatoryRequires that the customer enters their NIN/SSN (not supported in all markets).  Enabling this can also have the effect of requiring DOB in some markets
Telephone number mandatoryRequires that the customer enters a phone number (not supported in all markets).
Enable B2B modeSee the B2B section in Overview.
Business ID attributeOnly visible if Enable B2B mode is set to Yes.
Custom CheckboxesSee Multiple Checkbox Support section

Checkout design

Checkout design options can be configured under the following path in the Admin:

Stores > Configuration > Sales > Checkout > Klarna Checkout Design

In this menu, CSS hex colors are used, for example, #FF9900.

Checkout button colorModify the color of buttons.
Checkout button text colorModify the color of button text
Checkout checkbox colorModify the background color of a checkbox
Checkout checkbox checkmark colorModify the color of the checkbox checkmark
Checkout header colorModify the color of headers on checkout
Checkout link colorModify the color of links on checkout
Checkout border radiusModify the border radius of the iframe