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Mollie-Klarna Payment Module

SKU: Payments.MollieKlarna
Manufacturer part number: PaymentMollieKlarna
-Support for Klarna Pay later and Klarna Pay sliced
-Per country surcharges
-Extensive bidirectional communication between NopCommerce and Mollie-Klarna
-Compatible with NopFinance accounting 1.0

You must purchase a license for each domain that you want to use this plugin for. 

A domain license can be activated on an infinite number of sub domains. Therefore do not enter the www. prefix

We will need any of the following access types to your server:

RDP access

Team Viewer (through your desktop)


You are required to watch and monitor the entire installation and configuration procedure.

€139.95 excl tax
  • subtitles Installation procedure and description


    • Order plus order lines are posted to Mollie-Klarna
    • Payment surcharge is added as additional order item
    • Shipment surcharge is added as additional order item
    • Add payment surcharge for each country. A combination of fixed fee plus percentage fee is allowed
      When Order is shipped in NopCommerce then shipping is automatically done at Klarna
    • Authorization at Klarna is automatically imported into NopCommerce whereby the order is set to 'Authorized'.
      Orders cancelled at Mollie-klarna are automatically cancelled in NopCommerce
    • Orders at authorization phase cancelled at NopCommerce are automatically cancelled at Mollie-Klarna
    • Order shipped from within Mollie-Klarna will set the order in NopCommerce to 'Completed'
    • When Mollie transfers the money to your bank account then the order will be set to 'Paid'
    • Refunding can only be done at Mollie-Klarna! Refund information will be passed on to NopCommerce
    • Orders refunded fully from Mollie-Klarna will be fully refunded in NopCommerce
    • OrderLines removed at MollieKlarna will not be updated in NopCommerce. That information is not sent to NopCommerce.
    • Orders refunded partially from Mollie-Klarna will be partially refunded in NopCommerce
    • It is not possible to refund from within NopCommerce due to the lack of a orderline2refund mechanism.
    • When shipment is sent from NopCommerce then the Mollie-Klarna is informed.

    Does not support:

    -partial refunds and communication between de platforms on that topic

    -partial shipments

    -Other payment methods

    -Works only with Mollie-Klarna and can not be used to directly interface with Klarna

    Quick installation guide

    • 1. Is this your first purchase at actOpus? If yes then first copy the License Manager plugin folder to the plugins directory
    • 2. Copy the purchased plugin folder to the plugins directory
    • 3. reload your plugins in nopCommerce
    • 4. Is this your first purchase at actOpus? If yes then first install the License Manager plugin. No config needed
    • 5. Install the purchased plugin
    • 6. Register your plugin in the License Manager configuration screen.
    • 7. Configure the purchased plugin 

    To install this plugin, follow this procedure:

    • 1. Locate the root folder of your webshop. This folder should contain other folders like 'Administration, bin, Content, Plugins, Themes' and more.
    • 2. Next open the folder 'Plugins'
    • 3. Unzip the contents of the downloaded file into this 'Plugins' folder. The zip file already contains a folder for the plugin 'Payments.Mollie' so when you unzip make sure you select the 'use folder names' option. 

    Now your 'Plugins' folder should contain a folder named 'Payments.Mollie'. Latter should contain a dozen files.

    Configuring the plugin 

    To configure this plugin, follow this procedure:

    • 1. Go to your nopCommerce administration environment.
    • 2. From the top menu 'Configuration', select the sub menu 'Plugins'.
    • 3. Click the button 'Reload list of plugins', usually located just below the right top of the screen.
    • 4. After a minute or so, the list is renewed and you will see the plugin 'Mollie-Klarna Payment Methods'. Its system name is: Payments.MollieKlarna'
    • 5. Click on the button 'Edit', it's just below the plugin. Check 'is enabled' and save
    • 6. Back in the list: Click on the button 'Configure', it's just below the plugin.
    • 7. In 'Live API Key' copy your Live API Id, provided by Mollie
    • 8. In 'Test API Key' type your Test API Id, provided by Mollie
    • 9. Check 'Use test mode' if you want to test your payments. Uncheck this option for Live payments!
    • 10. Set '' to 0.0 if you don't want to charge your customers for payments. 
      • When ' is set to a value <> 0.0 then check 'Additional fee. Use percentage' if you want to charge your customer based on a percentage of the order value. In that case the value for 'Additional fee' is interpreted as a percentage in stead of fixed fee. Please keep in mind that the additional fee applies to all of the payment methods provided by Mollie.
    • 11. Select 'Direct user to the order details screen' if your want your customer to be redirected to their order screen upon payment (succesfull or unsuccesfull)
    • 12. Click 'Save'

    A list of all of your payment methods now appears below 'List of all methods supported by your Mollie account.'

    if not, check your merchant info and try again.

    Tech FAQ

    • Problem: I get a 404 error when I try to configure the plugin
      • Cause: Routing tables not loaded
      • Solution: Open the file global.asax in the root of your webshop. Add a 'white space' character at the end of the file, outside the XML tag. Save the file and call up your webshop. 

    Otherwise, buy support from actOpus.

    GDPR Information

    What information is sent to Mollie?

    • A unique transaction code to identify the payment 
    • An order description stating the order Id of NopCommerce
    • The amount payable
    • shipping address:
      • street and house number
      • zip code
      • city
      • region
      • country
    • billing address:
      • street and house number
      • zip code
      • city
      • region
      • country
    • Order lines
    • Shipment information and tracking code

    What information is retrieved from Mollie?

    • A unique transaction code to identify the payment
    • The payment outcome: Canceled, Paid, Authorized, Voided
    • A unique refund transaction code to identify the refund
    • The refund outcome

    What happens when a customer wants their NopCommerce account to be deleted?

    -Payment information at Mollie will not be deleted as it is a legal obligation of payment providers to keep track of all payments

  • library_books Products specifications
    Required Microsoft .NET version 4.5.1
    License period in years 20
    Support type Bug fixes
    Upgrades included? 3
    nopCommerce versions 3.70
    nopCommerce versions 3.80
    nopCommerce versions 3.90
    nopCommerce versions 4.00
    nopCommerce versions 4.10
  • label Product tags