Hi barry-goshoploca,
Welcome to Community! It's great to hear that you'd like to connect CS-Cart to streamline your accounting needs and keep everything in one place. QuickBooks Online provides the option for you to add such apps directly in your account. I'd be happy to show you how!
Follow these steps to add CS-Cart to QuickBooks Online:
1. From the left menu, select Apps
2. Use the search engine to locate the app
3. Hit Get app now
If you require additional assistance with the integration process, please contact support for CS-Cart. Their contact information can easily be located from the app page.
If you have any other questions, please reach back out. We'd be glad to help!