Pre-filling purchase orders, estimates and invoices numbers

HI there, 

Welcome to the Community. QuickBooks is a great program which helps streamline your business. I'd be happy to answer your question so you can get back on track with doing what you love. 

Since you're using the Desktop version, you can turn off the recall preference by following the steps below on your company file:

1. Go to the Edit menu at the top.
2. From the list, select Preferences.
3. On the Preferences window, hover to the General topic.
4. Under Automatically Recall Information section, uncheck the Automatically remember account or transaction information box.
   
5. Click OK.

There you go! You now know how to turn off the Prefill feature. Give this a try and in case you have other questions, feel free to contact our support team using this link here.