Quickbooks Online Drop down boxes not working. when I write checks to vendors. Vendor list will not populate, chart of accounts will not populate. using Windows 10 Home.

I’m having the same issue

i have followed the steps you have listed and it has not resolved 

Thanks for joining this thread, krys bods.

I can see that you're using a different region of QuickBooks Online. However, I've tried to replicate by typing in and the system automatically populates a list of taxes on the Banking page. See the attached screenshot below for your visual guide.

If you've already cleared the browser's cache and cookies, you can use other supported browsers to isolate the issue. You can refer to this link to know what computer and browser you need: System requirements for QuickBooks Online, Accountant, and QuickBooks Self-Employed.

If the same issue persists, I recommend contacting our QuickBooks Online Support Team. This way, they can create a case and send it to our Product Team for further investigation.

Here's how to get in touch with them:

1. Sign in to your QuickBooks Online company.
2. Select Help (?) at the top right.
3. Enter your concern, then select Let's talk.
4. Select Contact Us to connect with a live support agent.
5. Choose a way to connect with us:
   • Start a chat with a support expert.
   • Get a callback from the next available expert.

Keep me posted if there's anything else you need by commenting below. I'll be around to help you.

Hello, @orestys.

I'm here to guide you in performing some troubleshooting steps so you'd be able to write checks and navigate around QuickBooks successfully.

If you're using the QuickBooks Online desktop app, we can start by resetting the app's data. Here's how:

1. Click Help at the top.
2. Selecting Reset App Data.
3. Then, close and re-open the app and try signing in again.

If it still doesn't make a difference, you can uninstall and reinstall the app. You can read through this article for the detailed steps: QuickBooks App for Windows and Mac: General support.

Also, you can try accessing your account using a private browsing or incognito window. This way, you'd be able to isolate this unexpected behavior. You can use any of these keyboard shortcuts:

• For Chrome press Ctrl+Shift+N.
• For Firefox, press Ctrl+Shift+P. 
• For Safari, hold down Command+Shift+N.

Once you're able to logged in, you can try creating a check again. If it works, you'd want to clear the cache of your regular browser. Also, you can use a different supported browser. Lastly, to ensure that the browser and system are optimally configured for QuickBooks, you can run the Browser Health Checkup tool.

You can always get back to me if there's anything else you need with QuickBooks App. I'll be around to help.

OK, now I am really irritated. I spent 90 minutes on a chat. After asking pointless questions that I had already answer, the QB employee said "Thank you for waiting. As per checking here, your name is not listed on the account. You will need to have the primary contact reach us back for further assistance." 

I am the sole owner of my business. I am the only contact there is. This was a total BS excuse to simply cut me off after an hour and a half of doing nothing. 

This is the last straw. I am switching got Freshbooks.

susan3rd, I'm glad you mentioned this because I'm having the exact same problem. The timing is almost exact too. I believe it was 3 weeks ago when I started noticing the pulldown menus are no longer working. When I try to access an invoice, enter an expense, etc. they don't work. I'm using Chrome and when I go into incognito mode, everything works fine. I've already cleared cache and that didn't help. Something must be wrong on the QBO application layer if we both had an issue occur at the same time like this.