Thanks for joining the conversation, Michael. I can help you run a report that shows the total items by product in QuickBooks Online (QBO). 

To achieve the task, may I know the specific report you generated? Also, what QBO plan are you currently subscribed to?

If you run the Sales by Product/Service Detail report, the total items are available at the bottom of the QTY column. Please note that this report is exclusively available in Essential, Plus, and Advanced versions. Refer to the screenshot below for your visual guide.

If the total isn't there, you may be experiencing some browser-related issue. Thus, I recommend signing into your QuickBooks account using a private or incognito window to sort this out. Depending on the browser you're using, you can use these keyboard shortcuts to save time:

• Mozilla Firefox: CTRL + Shift + P
• Microsoft Edge: CTRL + Shift + N
• Google Chrome: CTRL + Shift + N
• Safari: Command + Shift + N

After signing into your account, run the report again and see if it shows the total items. If so, return to your regular browsing history and clear the cache. Otherwise, use other supported browsers to help narrow down the cause of this behavior.

Moreover, you can customize your report to focus on the details that you need. After that, I suggest saving the current settings by clicking Save Customization or Save As. That way, you won’t have to go through the customization process again in case you need the same information in the future.

Let me know in the comments below if you have more questions about running reports in QuickBooks, Michael. I'll be around to provide further help.