Hi there, @Doughydman1.

So pleased to see you accomplishing great things on your business. 

I can see how it would be helpful to run a profitability by invoice report in QuickBooks Online. Rest assured that I'll submit feedback directly to the Development Team to have it introduced. I also encourage you to add your vote for this one by sending a request within QuickBooks. 

Here's how:
 

1. Select the Gear icon at the top, then Feedback.
   
2. Enter your comments or product suggestions then select Next.
3. You'll be provided a list of suggested Help articles related to your comment. You can read through them or select Skip and send message.
4. From the drop-down, choose the appropriate category, then select Send message.

In the meantime, you may consider looking for a third-party app. QuickBooks supports thousands of various third-party applications for any functionality you may need. However, we're unable to recommend which app to use. You can check our Intuit App Center and type a keyword in the search box. Then, read the app reviews to help you make a decision on which one to use.

You can also go to the Apps menu from your QuickBooks Online account. Follow these steps:

1. On the left panel, click Apps.
2. Go to the Find Apps tab.
3. Use the search bar to look for an app.
   

Be sure to let me know how else I can empower you to make QuickBooks work the way your business needs. Thanks for coming to the Community. Wishing you even more success in the future.