For full Klarna EMD support, please use the Airwallex API Version 2025-08-05 API or later.
Klarna collects additional information regarding the customer and the purchase for certain use cases. This information, referred to as extra merchant data (EMD), consists of data that is typically not available at the checkout, but which enables Klarna to complete an assertive risk assessment, enable new promotional products and improve conversion rates for a boost in performance. For certain business categories, EMD is required.
Registered Customer EMD
For all merchants regardless of business categories, Registered Customer EMD can help improve the credit limit and increase your checkout conversion rate on your returning customers who are new to Klarna. By sharing the EMD of the customer's info and purchase history, Klarna can also recognize them as returning shoppers.
Customer Info
If the customer is registered, you can share the registration information about the customer.
- Required EMD:
customer.merchant_customer_idadditional_info.customer_activity_data.registration_dateadditional_info.customer_activity_data.last_modified_at
Purchase Summaries
If the customer has purchased before, you can share their payment history information.
- Required EMD:
customer.merchant_customer_idadditional_info.customer_activity_data.purchase_summaries
Sample request body for creating payment intent:
Business Category EMD
For certain business categories, including Travel/OTA (Online Travel Agency), Ticketing (Events), Intangible Goods (incl. Online Education), and Marketplace, EMD is required. If your businesses are in the relevant categories, we typically require an EMD package for your integration API and approval from Klarna before go-live. Please contact your Account Manager for EMD integration details.
In addition, it is strongly recommended to pass Registered Customer EMD whenever available to increase the Klarna approval rate.
| Business Category | Required EMD | Details |
|---|---|---|
| Travel/OTA (Online Travel Agency) |
|
If you are selling services associated to travel segment, you are required to provide information about the passengers and the itinerary to be booked. |
| Ticketing (Events) |
|
If you are selling ticket to an event, you have to provide information about the event. |
| Intangible Goods |
|
If you are selling intangible goods (e.g. Online Education, voucher and so on), you have to provide information about the product. |
| Marketplace |
|
When enabling marketplace services and creating an order for a sub-seller, you are required to shared information about the sub-seller. |