Shopify generally does not allow alternative payment apps to be public in the app store. Klarna does have an integration available as a private app. More info available at: https://x.klarnacdn.net/plugins/Klarna%20Payments%20on%20Shopify%20-%20Merchant%20Guide.pdf
Not too sure - See this step by step process https://help.shopify.com/en/manual/payments/shopify-payments/local-payment-methods/klarna. I had customers who used the same before.
Klarna Payments on Shopify is available as a local payment method within Shopify Payments for some regions (as listed at https://help.shopify.com/en/manual/payments/shopify-payments/local-payment-methods/klarna) and also as an alternative payment method for more regions (per https://x.klarnacdn.net/plugins/Klarna%20Payments%20on%20Shopify%20-%20Merchant%20Guide.pdf)
Hi @gugalucio ,
Klarna is available for Shopify for US as an alternative payment method (but not as a local payment method within Shopify Payments for US). More info about options at https://www.klarna.com/us/ and if interested, you can sign up for Klarna API credentials at https://eu.portal.klarna.com/signup?products=kp&plugin=ShopifyHPP&platform=shopify
Hi again @gugalucio ,
You can sign up for a free test account for Klarna API test credentials at https://developers.klarna.com/documentation/testing-environment/
(the only data required is an email)
Once you have Klarna API test credentials, you can integrate with the Shopify Klarna Payments install wizard (https://www.klarnapayments.com/install); on the 2nd step (Authenticate Klarna API Credentials), expand the section to check the checkbox for "Test mode (do not check when using production Klarna API credentials)"