Welcome to the Community, Serene.
When you're unable to access QuickBooks Online (QBO), you may be encountering error messages such as 'Access is denied' or 'Access has been denied for this operation.'
To fix this, try the following steps:
- Open an incognito or private browser window.
- Use supported web browsers.
- Try a different device (PC, phone or tablet).
Should you encounter an error message other than the ones mentioned above, please let us know or refer to this article for more guidance: Resolve sign-in issues in QuickBooks.
If you have any other concerns, we're available 24/7 to assist you.