Welcome to QuickBooks,laketch.

You'll find the advance settings when clicking Account and Settings in QuickBooks Online (QBO). Let me guide you on how.

1. Click the Gear icon on the upper-right corner.
2. Select Accounts and Settings.
3. Go to the Advanced tab. 
   

However, if the tab is still not showing, let's perform troubleshooting steps to resolve this issue. You can log in to your QBO account using a private browser. This is to rule cache-related issues. 

Here are the keyboard shortcuts:

• Google Chrome: Ctrl + Shift + N
  Internet Explorer: Ctrl + Shift + P
  Mozilla Firefox: Ctrl + Shift + P
  Safari: Command + Option + P

If it works, clear your browser's cache to speed up the loading process of the QBO website and for the system to start fresh. 

You can also try switching to a different browser.

Advanced settings offer many ways for adjustments. Automation, for example, helps you save time by cutting downtime on your data entry. Please check this article for more information: How Do I Set My Advanced Account Settings?

For future reference about help articles, please visit this link for your guide: Help Articles For QuickBooks Online.

Reach out to us if you need further assistance. I'll be right here to help.