I need Quickbooks Online (Timesheets module) to allow a minus value
I can help you make everything possible with QuickBooks, SLB_Serendipiti.
I appreciate you for providing a complete scenario of your concern. I also see that the ability to add minus value in the time box is helpful for you and other users. So, your employee's timesheet report will show six units at the end of the month.
With this, I'm going to direct you to a page where you can post feature suggestions. This allows our engineers to come up with a solution to enhance your overall experience. You can send your ideas to either your QuickBooks Online or Timesheet account. Simply follow the steps below.
Inside QuickBooks Online:
Go to the Gear icon on the upper right side.
Click Feedback under Profile.
Type your suggestion in the box and tap Next.
Click the Help menu on the upper right side and select Suggest Idea.
Enter your Email in the field so you can receive an update about your feedback.
Type your suggestion in the box and click Send Idea.
If you have any opinion on your QuickBooks Online and Timesheets, please feel free to share it with me in this feed. I'm ready to listen to you and help you make it happen. Keep safe, @SLB_Serendipiti.