I have the following error message 'When you use debtors you must choose a customer in the name field'. I have put a customer in the Name field so why do I get this?

I can help you resolve the error you're having, @kayepau.

It's possible that piled-up cache in your regular browser caused this unusual behaviour. You can clear your current browser’s cache to resolve this. 

Go to your account by using a private browser or an incognito window, then try recreating the transaction. If it works fine, clear the cache in the one that you're currently using.

Here’s how to go incognito or use a private browser:

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

Here's more information on how to clear cache and cookies to fix issues when using QuickBooks Online. You can also proceed by using other browsers if the steps above don’t work.

Here are some video tutorials that can help you achieve basic tasks in QuickBooks Online: Video tutorials for QuickBooks Online. 

I'm always here if you need help or assistance with your transactions. Just leave a reply below. Have a wonderful day!