Add Klarna On-Site Messaging & Financing Page To Your Website

Login to your Klarna merchant portal and navigate to On-Site Messaging > Installation.
You will see a box with code in it, click the copy to clipboard button.
Log into Admin and navigate to Settings > Commerce > Payment Settings> Klarna.
Check the "Activate On-site messaging box".
Paste the previously copied code in the box that pops up.
Save changes
Results: Klarna On-Site messaging displays at the item level of qualified items.

Navigate to your Klarna merchant portal and click on Placements.
Scroll down until you see the landing page.
Click Copy To Clipboard in the code section below the preview of the landing page.
Navigate back to Admin and go to Website > Page Editor.
Click "Add Page" then choose Responsive Page.
On the left side mouse over the Content Block Tab, scroll down, click on HTML, and drag an HTML section onto the page.
Click Create and add the title “Klarna Code”.
Paste the previously copied code into the HTML/Text Input section then Save Settings.
Click on Page Settings and enter the page title “Klarna Financing”
Save Changes and publish changes on your website.
Click Preview to view the page.
Remove “?preview=true” from the URL, now it’s ready to use.
Add this page to your site's menu with Navigator Builder
You may also want to add a link from your Home page or Footer

Shop now, pay later with Klarna.