First, head over to https://app.datatrics.com/integrations/webwinkelkeur/. Click on the "Install" button, and you will be redirected to the settings screen:
To connect your WebwinkelKeur account, you need to enter your Webshop ID and API key. You can find this data after logging in on dashboard.webwinkelkeur.nl. Then select 'Installatie'. In the following explanation, you can find the needed data. You can find the Dutch explanation here.
After entering the API Key on the WebwinkelKeur settings page, click on Save Settings.
Datatrics will use the WebwinkelKeur integration to sync profiles, reviews, and a content item based on a review summary.