Let's get this sorted out by performing some troubleshooting steps.
One of the possible reasons why some options or buttons in QuickBooks Online (QBO) are missing is due to a data issue on your browser. There are times that the browser store frequently accessed data, thus causing QBO to act weirdly. Let's try logging in to your QBO account using a private browser to check if it's a browser data issue. Press this shortcut key on your keyboard to open a private browser:
Google Chrome: Ctrl + Shift + N
Mozilla Firefox: Ctrl + Shift + P
Safari: Command + Option + P
Once logged in, go back and try to turn on the Project feature again to double-check. If this works, it means that you need to clear the browser's cache so the system can start fresh. If you get the same result while using a private browser, I recommend switching to a different one.
You might want to learn more about the Project feature in QBO. Here's an article you can read for more details: Projects FAQ.
Keep in touch if you need any more assistance with the Project feature, or there's something else I can do for you. I'm always around if you need any help.
Thank you so much Mark for paying attention to my query.
I tried the remedy suggested by you and opened my account in Chrome Private Browser, but the edit button wasn't there still.
I should mention here that when I first tried to switch on the project option, the button was in fact there and seemed to work. While doing this, something strange happened as if my laptop had stopped responding. Afterward, the button disappeared.
I’m here to ensure this Project Edit button will get back to normal, @Muhammad Tayyab.
When the strange happened, did you received an error or prompt message?
Since the issue remains, it would be best to reach out to our Technical Support team for further assistance. With their tools, they can help determine the root cause of the issue. They can also provide additional fixes to ensure that button will show up and work again.
Select the Help menu in your QuickBooks Accountant Online account.
Type in Talk to a human.
You can enter "missing button" in the field.
Click I still need a human, then press Get help from a human.
To help you organize all the moving pieces of your project, including transactions, time, and running reports, use this information to know the easy ways to track projects in QuickBooks.
Don’t hesitate to leave a comment below if you have other concerns besides the Project Edit button. We're always here to help you out. Take care!