How does one adjust stock levels to reflect sales?

Thanks for posting your concern here in the Community forum, @susan-hey. I'm here to share some insight about how inventory appears on your sales in QuickBooks Online (QBO).

To reflect your stock levels to sales in QBO, you'll need to generate sales transactions first. Also, I recommend reaching out to your accountant to provide you with other options available to you. 

For your reference, I've included this article if you want to learn how to adjust item quantity manually in QuickBooks Online: Adjust stock quantity on hand in QuickBooks Online.

Additionally, kindly visit this article to run a report that provides you helpful insights on the status of your inventory in QuickBooks: Use reports to see your sales and inventory status. Then, you can customise your report to the details you need to show.

Let me know if you have further questions about managing your inventory. I'm happy to help you out again. Take care always.