Hi there, @ccf2. I've got you covered, and I'll discuss further details on why it's a must to set up an income account on your product and services in QuickBooks Online (QBO) account.

Here in QBO, whenever you add a product and service to your business, you'll also have to set up an income account for those items you've entered. This way, when creating an invoice for those items you've sold or services you rendered to your customers, QuickBooks will know where to allocate the income you earn from those items.

Also, it's an effective way to track your earnings since the figures from your income account will reflect when you run the profit and loss reports to see how your business is doing.

See this article for further guidelines on how to set an income account for a product or service in QBO:  Add product and service items to QuickBooks Online.

In addition, I've got you this article to help you track your inventory here in QBO: Set up and track your inventory in QuickBooks Online.

You can also check this article about customising a report to show specific data in QBO: Customise reports in QuickBooks Online.

@ccf2, It's always a pleasure to have you here in the Community. If there's anything else that you'd like me to help you with, or if you need assistance performing specific tasks in QuickBooks. Know that you can always get back to me anytime. I'll be more than happy to help you out again. Take care, and enjoy your journey here in QuickBooks!