How do I enter multiple bills for the same vendor. When I try to do it, it brings up an existing bill for that vendor instead of letting me create a new one.

I can help you handle this, nsnell19.

This can happen when the auto-fill feature is turned on. I'll guide you on how to turn it off. Here's how:

1. Go to the Gear icon and select Account and Settings.
2. Select the Advanced tab.
3. In the Automation section, toggle the Pre-fill forms with previously entered content.
4. Click on Save, then Done.

The steps above, it'll no longer bring up the existing bill for that vendor.

On the other hand, you can enter multiple bills all at once for the same vendor using QuickBooks Online Advanced. To learn more details about the process, please refer to this article: Create multiple bills or expenses in QuickBooks Online Advanced.

I'll be around to keep helping if you have further concerns regarding vendors in QBO.