I appreciate the details you've added, @robert-ttproject. I'll share some details so you can proceed and edit your project to show the correct cost amount in your QuickBooks Online (QBO) account.
Please know that the Project Overview should only show income and expense. You'll want to check all the transactions in the overview tab and then take note of the details inside the items you've entered. You'll also want to check each account and ensure that you were able to enter an amount in the Cost section. By doing this, you'll be able to see the correct figures in your Project Overview tab.
In addition, I've also got you this article to help you manage your projects in QBO: Manage and track your work with client requests, projects, and tasks.
You may also check this article in case you'd like to add existing invoices to your projects in QBO: Add existing invoices to QuickBooks Online Projects.
Feel free to get back to this thread if you need further assistance managing projects in QuickBooks Online, @robert-ttproject. Our door is open 24/7 and our dedicated team of experts are always around to help you. Take care!
