Hi there, hayden519.
Welcome to the QuickBooks Community. Let me share details to ensure you can unlock or edit timesheets that have been previously approved. Then, route you to the right support team to assist you further on this matter so you can get back on track.
When editing time sheets that have been previously approved, you'll have to make sure that you log in to QuickBooks Timesheet as an account administrator. This might be the reason why unable to unlock or edit time sheets.
Additionally, you can only unlock timesheets up to 90 days in the past. Otherwise, editing them is currently unavailable.
If you're already the admin and the timesheets are within 90 days but the issue persists, I recommend logging in to your QB Timesheet using a private browser. Then, try to edit time sheets from there. This is to rule out the possibility of a webpage issue, and private browsing doesn't store local files or cache.
Use these keyboard shortcuts based on the browser you're using.
- For Firefox or Microsoft Edge, press Ctrl + Shift + P.
- For Chrome, press Ctrl + Shift + N.
- For Safari, hold down Command + Shift + N.
If it works in incognito, you have to clear the cache of your regular browser. This removes the history or log of sites so you can start with a clean slate. You can check this article to see the steps: Clear cache and cookies to fix issues when using QuickBooks Online.
If the steps above didn't work, use another supported browser as an alternative.
If the issue continues to occur, I recommend contacting the QB Timesheet Team. They have the tools to pull up your account in a secure environment and be able to investigate why you're unable to unlock or edit timesheets that have been previously approved.
Lastly, you may refer to this article to view steps on how you can add or update Notes on a previous timesheet: Add notes to your current timesheet or a previous timesheet in QuickBooks Time.
Please let me know how it goes. I want to make sure that you get back on track with your business. I'm only a few clicks away if you need further help, hayden519. Have a great day!
