Hello again, @firststepsinmusi,
Thanks for providing that clarification. I have a better idea of what you're looking for now.
Given the nature of moving data, I can see why you're wanting to have the right solution for your business. QuickBooks Online (QBO) has options for incorporating other resources into the platform. There are thousands of applications that integrate with QBO and you can browse some of the available options at the following link: QuickBooks Apps.
Additionally, I recommend the following article by Intuit which goes over setting up an online store and covers e-commerce platforms and solutions: How to Set Up an Online Store. Given the number of options available, plus as all businesses are unique, I recommend looking over these resources as they can help to get you pointed in the right direction.
Please let me know if I can be of additional assistance. Cheering you and your business to continued prosperity.