Can I create a report to check sales by product?

Yes, you can, @patisa33.

You'll be able to create a report in QuickBooks that'll show the items you sell, the cost of goods, and more. Let me refer you to this article for the detailed steps: Use reports to see your sales and inventory status.

You may also customise your reports to add or remove information depending on your preferences. 

If you also need to track your services or non-inventory items, you can check this helpful article: Track your services or non-inventory items.

That should do it. If you have other questions about your sales transactions, do let me know. I'll be around if you need help. Have a good one.