Shopify Klarna Integration Services

Customers abandon carts at checkout because the full price lands wrong, not because they don't want the product. Klarna fixes that by letting shoppers split payments into installments while merchants receive the full amount upfront. Shero implements Klarna on Shopify via Shopify Payments, the Klarna app, or enterprise PSPs such as Adyen and Checkout.com for high-volume stores that need more than the native integration offers.

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16+

Years in business

500+

Projects Delivered

50+

Team Members

98%

Client Retention

15%

US adults who used BNPL in 2025

The Federal Reserve found 15% of US adults used buy now, pay later in 2025, up from 10% in 2021. BNPL is no longer a niche payment method. For Shopify brands selling products where upfront cost creates checkout hesitation, the absence of a BNPL option is a measurable conversion problem.

222%

Rise in DTC customer acquisition costs over 8 years

Paid traffic costs 222% more than it did eight years ago. Checkout conversion improvements are one of the few levers that lower acquisition cost without increasing spend. Klarna at checkout directly affects the percentage of paid traffic that completes a purchase.

98%

Client Retention

98% of Shero's clients stay on retainer after their project closes. Payment configuration requires ongoing maintenance as Klarna releases updates, Shopify changes checkout architecture, and reconciliation requirements evolve with order volume.

Shopify

Premier Partner

Shero holds Shopify Premier Partner status, one of fewer than 150 agencies globally. Payment integrations that involve Checkout Extensibility, enterprise PSPs, or custom reconciliation require the platform depth that Premier status reflects.

Since partnering with Shero Commerce, our eCommerce revenue has grown by 200%. Their support and solutions have been game changers for our business.

James McKenna, Senior Commerce and CX Manager, STX

What Shopify Klarna integration actually involves

Klarna can be implemented on Shopify through Shopify Payments, the Klarna Payments app, or enterprise PSPs like Adyen, Checkout.com, and Mollie. The method matters, and it involves:

Klarna integration via Shopify Payments for eligible merchants in supported markets
Klarna Payments app setup for stores outside Shopify Payments coverage
Enterprise PSP integration via Adyen, Checkout.com, or Mollie for high-volume stores
On-site messaging configuration on product pages, cart, and checkout
Reconciliation setup to account for Klarna's net-of-fee payout structure
Post-launch monitoring and Klarna checkout performance reporting

01

Integration path selected before any configuration starts

Shopify Payments, the Klarna app, and enterprise PSPs are not interchangeable. The right path depends on the merchant's market, existing payment stack, and order volume. Shero assesses these before any configuration begins, because switching paths after launch requires dismantling what was already built.

02

On-site messaging that shows installment amounts before checkout

Klarna's conversion impact is highest when installment amounts appear on product pages and in the cart, not only at checkout. Shero configures Klarna's on-site messaging widgets at product, cart, and checkout levels so customers see the split cost at the point where purchase decisions are made.

03

Checkout configuration that surfaces Klarna without breaking other payment methods

Adding Klarna to Shopify checkout requires careful ordering of payment methods and testing across devices and browsers. Stores on Shopify Plus using Checkout Extensibility have more control over payment presentation. Shero configures Klarna alongside existing payment methods without disrupting card, wallet, or other BNPL options already in place.

04

Reconciliation configured for Klarna's net-of-fee payout structure

Klarna pays out the full transaction amount minus its transaction fee, net of refunds, on a settlement schedule. Manual reconciliation against Shopify order data requires mapping Klarna payouts to individual orders and accounting for fee deductions and refund timing. Shero sets up reconciliation correctly from the start, so Klarna payouts do not create accounting gaps.

05

Enterprise PSP integration for high-volume stores that need more than the native app

Shopify merchants processing high volumes or operating across multiple markets sometimes need Klarna through a PSP like Adyen or Checkout.com rather than the native Shopify integration. These setups require custom development work. Shero has built payment integrations at this level and scopes the approach through the same integration assessment process used for ERP and OMS work.

06

Post-launch monitoring as Klarna and Shopify checkout evolve

Klarna releases updates, Shopify changes checkout architecture, and reconciliation requirements shift with order volume. Payment configurations that are not maintained degrade silently. Shero's post-launch retainers cover payment monitoring alongside the rest of the store's technical stack.

Body jewelry and tattoo supplies

Painful Pleasures

Painful Pleasures is a long-standing supplier of body jewelry and tattoo supplies with a catalog of 40,000+ products. The brand partnered with Shero to complete a stalled Magento to Shopify migration and deliver the complex custom features their business depends on.

Painful Pleasures

Sports equipment for lacrosse and field hockey

STX

Looking to scale alongside growing global markets and competitor consolidation, the premium American manufacturer of lacrosse, field hockey, and ice hockey equipment, partnered with Shero to migrate from Adobe Commerce (Magento) to Shopify, delivering a unified D2C and B2B experience, custom ERP integration, and a refined storefront that reflects the engineering quality of their products.

STX

Premium Chocolates

Sarris Candies

Looking to scale beyond a custom .NET platform that had become a ceiling rather than a foundation, the family-owned Pennsylvania institution partnered with Shero to migrate to Shopify Plus, delivering a mobile-first storefront, custom personalization features, and advanced ordering capabilities for both gift buyers and bulk purchasers.

Sarris Candies

Finland's leading music instrument retailer

F-Musiikki

F-Musiikki is one of Finland's leading music instrument retailers, serving both consumers and businesses with over 15,000 products. Looking to reduce costs and modernize their platform, the brand partnered with Shero to migrate from Magento to Shopify Plus and launch a hybrid B2C/B2B store in just two months.

F-Musiikki

Klarna works best when it is configured correctly across the full checkout flow, not just enabled at the payment step.

The discovery session is free. It maps your current payment stack and identifies the right integration path before any configuration begins.

Book a Discovery Call

How a Shopify Klarna integration engagement runs

01

Payment Stack Assessment

Current payment setup, Shopify Payments eligibility, market coverage, and order volume reviewed. Integration path selected before any configuration begins.

02

Integration Configuration

Klarna connected via the selected route. On-site messaging configured on product pages, cart, and checkout. Payment method ordering set and tested across devices and browsers.

03

Reconciliation Setup

Klarna payout mapping configured against Shopify order data. Fee deduction and refund timing documented so Klarna settlements reconcile correctly from the first payout.

04

QA and Launch

Full checkout flow tested across payment methods, devices, and order types. On-site messaging verified at product, cart, and checkout levels. Reconciliation confirmed against a live payout before handover.

05

Post-Launch Support

Klarna performance monitoring, checkout conversion reporting, and update management included in Shero's ongoing retainer programs.

Frequently asked questions.

Can't find what you're looking for? Reach out to our team.

01

How does Klarna work on Shopify?

Klarna is available on Shopify through Shopify Payments for eligible merchants in supported markets, through the Klarna Payments app for stores outside Shopify Payments coverage, and through enterprise PSPs including Adyen, Checkout.com, and Mollie for high-volume operations. Klarna pays merchants the full transaction amount upfront and manages installment collection from the customer directly. Merchants pay a transaction fee, typically between 3% and 6%, depending on volume and market.

02

Which Shopify stores can use Klarna?

Klarna is available in 45+ markets. The integration path depends on whether the store uses Shopify Payments and which market it operates in. Shopify Payments supports Klarna natively for eligible merchants. Stores outside Shopify Payments coverage use the Klarna app. High-volume stores with complex payment stacks use Klarna through an enterprise PSP. Shero assesses the right path in discovery.

03

Does Klarna affect Shopify checkout conversion?

It can, positively. Cart abandonment at the payment stage is often caused by upfront cost friction rather than lack of intent. Adding Klarna gives customers a way to split the cost across installments, which reduces hesitation on higher-priced purchases. The impact is highest when installment amounts are shown on product pages and in the cart, not only at checkout.

04

How does Klarna reconciliation work with Shopify?

Klarna pays out net of its transaction fee and net of any refunds, on a settlement schedule that does not align one-to-one with Shopify order dates. Reconciling Klarna payouts against Shopify order data requires mapping each settlement to the orders it covers and accounting for fee deductions and refund timing. Shero sets this up correctly from the start to prevent accounting gaps.

05

Can Shero integrate Klarna through Adyen or Checkout.com on Shopify?

06

What happens after Klarna is set up?

Klarna releases updates, Shopify changes checkout architecture, and Klarna's fee structure and payout timing can change with volume. Payment configurations that are not monitored degrade silently. Shero's post-launch retainers cover ongoing Klarna monitoring, checkout performance reporting, and update management alongside the rest of the store's technical stack.

What our clients say.

We design experiences that make a difference. See what our clients have to say about working with us.

Alto Music

"As a long-time client, we at Alto Music have always appreciated their technical expertise, but their recent migration of our site from Magento 2 to Shopify was exceptional. Shero preserved the essence of our beloved loyalty and rewards program, seamlessly integrating it into Shopify’s more efficient framework. The transition not only retained our unique features but also significantly simplified site management and reduced costs. We’re thrilled with the results and highly recommend Shero for any e-commerce needs."

Bobby Montemurro

VP Sales & Marketing / Alto Music

Camera Source

"The Shero team delivered exactly what they committed to for our Magento to Shopify migration project. They met the 3 month timeline, communicated clearly at every step, and the site has been stable since day one."

Chris Triplett

Owner / CEO - Camera Source / Camera Source

Painful Pleasures

"Our journey from Magento to Shopify was riddled with complexities and challenges. With a vast catalog and intricate B2B logic, we needed expertise that could navigate through these intricacies. Shero Commerce was our beacon. They not only provided innovative solutions but also utilized their vast Magento knowledge to bridge gaps in Shopify’s native features. Now, our platform is seamless, our costs are reduced, and the headaches are a thing of the past. A heartfelt thank you to the Shero team!"

Patrick Rice

CEO / Painful Pleasures

STX

"Since partnering with Shero Commerce, our eCommerce revenue has grown by 200%. Their 24/7 support and innovative solutions have been game-changers for our business. "

James McKenna

Senior Commerce & CX Manager / STX

And you?

Let's build something great together.

Ready to scale your eCommerce business? Tell us about your project and we'll get back to you within 24 hours.

Email

[email protected]

Locations

New York • London • Helsinki • Tirana

Shopify Klarna Integration Services

What Shopify Klarna integration actually involves

Why brands work with Shero on Shopify Klarna integration

Integration path selected before any configuration starts

On-site messaging that shows installment amounts before checkout

Checkout configuration that surfaces Klarna without breaking other payment methods

Reconciliation configured for Klarna's net-of-fee payout structure

Enterprise PSP integration for high-volume stores that need more than the native app

Post-launch monitoring as Klarna and Shopify checkout evolve

Our Work

Painful Pleasures

STX

Sarris Candies

F-Musiikki

How a Shopify Klarna integration engagement runs

Payment Stack Assessment

Integration Configuration

Reconciliation Setup

QA and Launch

Post-Launch Support

Frequently asked questions.

How does Klarna work on Shopify?

Which Shopify stores can use Klarna?

Does Klarna affect Shopify checkout conversion?

How does Klarna reconciliation work with Shopify?

Can Shero integrate Klarna through Adyen or Checkout.com on Shopify?

What happens after Klarna is set up?

What our clients say.

Let's build something great together.