Can I move money from the Undeposited Funds account to the owners drawing account using the 'Transfer' function? Will this muck anything up?

Thanks for dropping by the QuickBooks Community, @beccollyer-gmail.

Yes, you can use the Transfer feature to move the money from the Undeposited Funds to the Owners drawing account. Let me show you how:

1. Go to the +New icon.
2. Under the Other column, click on Transfer Funds.
3. Select Undeposited Funds  in the from field
4. Select Owners drawing in the to field.
5. Enter the transfer amount.
6. Click on Save and Close button.

For more details, you can refer to this article: Transfer funds between accounts.

If you need further assistance, I'd suggest consulting your accountant to make sure the recording is accurate. is. If you're not affiliated with one, our Intuit Find-A-ProAdvisor site can help you to find certified professionals in your area.

I'm also adding these articles that tackle the matching and reconciling process in QBO for future reference: 

• Categorise and match online bank transactions in QuickBooks Online
• Reconcile an account in QuickBooks Online

 Please know that I'll be right here to help you if you have any other questions about transfer funds or any QuickBooks related. Have a good day!