I'm here to ensure you'll get past this issue so you can get back to working order, pvcc1-bigpond.

Before we proceed, could you please send me a screenshot of the page where you attempted to enable Classic Advanced Search? This will help me better understand the issue and provide an effective solution.

In the meantime, I recommend trying some troubleshooting steps to identify the root cause of the issue. Sometimes, browser-related issues can be caused by cache files. To troubleshoot this, try accessing QBO through a private window.

Here are some key shortcuts for accessing a private window:

• Mozilla Firefox: CTRL + Shift + P
• Microsoft Edge: CTRL + Shift + N
• Google Chrome: CTRL + Shift + N
• Safari: Command + Shift + N

 If you can use the Classic Advanced Search feature now, the root cause of this issue must be from your regular browser. I suggest clearing your browser's cache. You can also use other devices and supported browsers as an alternative.

Furthermore, here's a workaround to help filter your transaction based on specific criteria like invoices.

Here are the steps: 

1. Go to transaction search. 
2. Filter the transaction type into an invoice. 
3. Press CTRL + F. 
4. Then, enter the invoice number.
   
   

    

I'm also adding this article to get the most out of your financial reports: Customize reports in QuickBooks Online.

Feel free to reach out here if you need help searching your QBO transactions. I am always available to assist you. Have a great day!