Shopify Klarna Checkout API will it ever happen?

Payments + Shipping & Fulfilment

Topic summary

Request for native support of Klarna Checkout (KCO) “express checkout” in Shopify, distinct from Klarna Payments (perceived as slower). KCO is valued for pre-filled customer details and a near one-click flow, seen as crucial in Scandinavia.

Expectations tied to Shopify Online Store 2.0 and Checkout Extensibility: merchants hoped these changes would allow a custom, full Klarna express experience. There is still no confirmation from Shopify or Klarna whether this is technically or competitively blocked.

Business impact reported: higher checkout abandonment due to multi-step flow; some merchants are testing alternative platforms to regain conversion.

Recent developments: Shopify’s one-page checkout launched but did not enable Klarna express. Three years on, participants report no progress and request an update.

Attribution of responsibility: merchants relay that Klarna says it is ready to launch pending Shopify’s approval; no official statements appear in the thread to confirm this.

Status: Unresolved and ongoing. Key open question: Will Shopify allow full KCO express integration, and if so, when?

Summarized with AI on December 22. AI used: gpt-5.
2

Hi @Roar_Sweden ,

You are not alone waiting for this to happen! I’m also looking for a way to integrate Klarna Checkout (KCO) on our stores, and it would be nice to get an answer if it will be possible in near future or never happen.

I’m hoping the release of Shopify Online Store 2.0 could make this possible since there seems to be some changes to the checkout where Shopify will allow developers to build custom checkout experiences (you can read more about this here: Extend Shopify Checkout with apps). If this means that it will be possible to integrate Klarna with full experience (express checkout), I don’t know. It would be nice to get an answer from Shopify or Klarna if it’s a technical issue, competitive issue or something else.

It’s gone so far here that we are testing other platforms just because of the current checkout experience, it’s just such a huge deal breaker for us. We are seeing a lot of customers leave once they get to the checkout because it so many steps you have to go through to complete a purchase. The scandinavian customers are so used with express checkouts where everything is already filled out and you just click “complete purchase” and you are done.

I really hope Online 2.0 will fix this because we pretty much like everything else about Shopify. An answer to if it’s ever going to happen would be nice though!