Copy the BigCommerce script from here and replace YOUR_SOURCE_NUMBER and YOUR_MEDIUM_NUMBER with the one we provide you in your integration documentation. Make sure to use the right country code. If you are using sovendus for multiple countries, make sure you define YOUR_SOURCE_NUMBER and YOUR_MEDIUM_NUMBER in the script as well for each country.
In your BigCommerce backend go to: Storefront -> Script Manager -> click on Create a script
Enter a script name e.g. Sovendus Script, set placement to footer, set location to order confirmation, set the script category to essential, set the script type to script.
Paste the script into the script contents text area and click on save on the bottom right