Thanks for sharing your concern here in the Community, @Pridepro1.
You've got me here to help share some insights about changing the expected date of your sales/purchase order in QuickBooks Desktop.
QuickBooks uses the actual date of the sales/purchase order as the expected delivery date. However, you have the option to change the expected date by opening the sales/purchase order and update it manually. Setting your desired expected date as default is currently unavailable.
To change the expected date:
For more details about sales/purchase order, please refer to these articles:
Additionally, our developers are constantly working to enhance our product. That said, I'd encourage you to visit the New Feature section on your QuickBooks to get information regarding the latest product improvements.
To do that:
This information should get you going.
If there's anything else you need about this concern, please don't hesitate to let me know. Have a lovely day ahead!