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Get started with Kustom Checkout for Prestashop

Kustom Checkout is a modular, all-in-one checkout solution built for merchants who want to drive conversions and keep shoppers in flow. This PrestaShop plugin gives you a seamless, embedded checkout experience - no redirects, no drop-offs.

Kustom Checkout is Now Live

The Kustom Checkout module is available for download and installation:

What to do if I'm an existing user?

The Klarna Checkout module is no longer maintained and now redirects to the Kustom Checkout product page.

To ensure a smooth transition:

  1. Download and install the Kustom Checkout module.
  2. Verify your credentials and configuration settings.
  3. Deactivate any previous version of the Klarna Checkout module.
  4. Test the setup in your development environment before deploying it in production.

Need Assistance?

  • Technical Support: support@invertus.eu
  • Kustom Account Support: support@kustom.co

Module Requirements / Versions Compatibility

  • PrestaShop version: 1.7.2.x – 9
  • PHP version: 7.1.x – Latest compatible with PrestaShop 8
  • Note: Two decimal places are required

1. Install the Kustom Checkout Module

Option A: Using PrestaShop Modules Manager

  1. Log into your Back Office.
  2. Navigate to Modules → Modules Manager.
  3. Click Upload a Module.
  4. Drag and drop the kustomcheckoutofficial.zip file.

Option B: Using FTP

  1. Download kustomcheckoutofficial and extract it.
  2. Upload the kustomcheckoutofficial folder to your /modules directory using an FTP client like FileZilla.
  3. Log in to your PrestaShop Back Office.
  4. Navigate to Modules → Modules Catalog.
  5. Search for Kustom and click Install.

Locate the Module Later

To access the module settings after installation:

  • Go to Modules → Module Manager
  • Search for "Kustom"
  • Click Configure

2. Configure the Module

Environment Selection

  • Two checkboxes allow toggling between Sandbox and Production mode.
  • Production is selected by default.

API Credentials

In Kustom Portal you are able to generate API-credentials. Enter your Kustom API Username and Password for selected environment

Debug Mode

  • Enable to view full logs (recommended only for troubleshooting).

3. Map Order Statuses

Customize how Kustom statuses map to PrestaShop:

Kustom StateDefault PrestaShop Status
New ordersPayment accepted
Captured ordersShipped
Canceled ordersCanceled
Refunded ordersRefunded
Partially captured ordersPartially captured

4. Capture Payments

Automatically

  1. Enable Capture upon fulfillment.
  2. Select the order status (e.g. "Shipped").
  3. Click Save.

Manually

  1. Go to Orders → Orders in the admin panel.
  2. View a Kustom order.
  3. Click Capture Payment or Cancel Order.

5. Handle Refunds and Partial Actions

Refunds

  • Refund button appears after a capture.

Partial Capture

  • Click Capture Order, select individual items or amount.

Partial Refund

  • Works the same as above from the Manage Kustom Order section.

6. Customize Styling (Optional)

  • Modify styling of checkout if your Kustom account supports it.

7. Review Logs

Detailed Logs

Includes:

  • Request
  • Response
  • Context
  • Correlation ID

8. Enable Automatic Status Sync (Optional)

  • Toggle Allow automatic order status change:
    • Enabled: Kustom status updates PrestaShop
    • Disabled: Only initial status is used

9. Support

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