Common error codes from Klarna:
- 400 – Bad Value: purchase_currency
Your account at Klarna doesn’t seem to be configured for the currency used in your store. What currency did you select when you signed up with Klarna? If you need support, you should email your regions Klarna Merchant contact.
- 400 – Bad value: push
Your domain does not have a valid SSL Certificate. As of summer 2023 Klarna demands HTTPS.
- 401 – Unauthorized
If you receive this error message it usually means that you are using your credentials for the wrong plugin. It could also mean that the username and/or password is incorrect, try copying & pasting instead of typing in directly and double check for whitespace. If you need support, you should email your regions Klarna Merchant contact.
- 403 – Invalid_Operations
(1). 403 error code means the Klarna credentials authenticate successfully (so Klarna API credentials/username & password are correct) but you haven’t selected the Klarna products to enable these credentials to work yet. You should be able to select products in the Klarna Merchant Portal, but if you need assistance, you should email your regions Klarna Merchant contact.
(2). 403 error code could also mean the you are using the wrong plugin (KP) when your have credentials configured for KCO.
- 403 – Merchant_Inactive
This means that your Klarna credentials are NOT activated. If you need support, you should email your regions Klarna Merchant contact.
- 403 – PAYMENT_METHOD_FAILED
Check the reason. This usually happens when Klarna rejects a purchase.
- 404 – Not found
Where credentials were changed during the order. Please make sure to start a new browser session after changing credentials. If you need support, you should email your regions Klarna Merchant contact.
- 405 – Method not allowed
Merchants are encountering issues when their Klarna credentials are a valid username & password, but aren’t correctly configured for the market they are using them for. Check which product (KP or KCO) you signed up with at Klarna. If you need support, you should email your regions Klarna Merchant contact.
Common error codes from our plugin:
- Klarna Checkout error (Failed to load Klarna Checkout template file.)
This means that there is another plugin or theme that overrides and makes our template file not to load correctly in the checkout.
This error message can also be shown when your WooCommerce Checkout page is missing the