1. Firstly, click and Download KROOZ PAY OpenCart 3 extension and save the extension file (kroozpay-oc.zip) to your computer.
2. Then login to your OpenCart CMS as Admin.
3. Click Extensions.
4. Click Extension Installer.
5. Click Upload and select the KROOZ PAY OpenCart file (kroozpay-oc.zip) from your computer.
6. Then click Continue.
7. To complete the configuration, you will need to add your KROOZ PAY Payment Gateway Client ID and Secret Key. You need to register with KROOZ PAY as a merchant - Click here to Register with KROOZ PAY.