I'd be happy to provide some clarification regarding this matter that you may find helpful.
QuickBooks is designed to automatically add your transactions that are due on the calendar. However, you need to set it up to show all types of transactions to ensure that you'll be able to see your purchase orders.
Here's how you can do it:
From the Edit menu, choose Preferences.
Select Calendar in the left navigation menu.
Go to the My Preferences tab.
From the Show drop-down menu, select All Transactions.
That should do it. Keep in touch if there's anything else I can help you with. Have a great day!
Thanks for getting back to us. Allow me to step in and help provide some information about the purchase orders on the calendar.
At this time, we don't have due date terms for purchase order yet in QuickBooks. That's why we don't have the option to see a past due purchase order in the calendar. We can only see the entered transactions for PO and the status if it's open or closed.
While there isn't a setting where you can add all the due purchase orders on the calendar, I'd encourage you to send feedback to let us know how you feel about this feature. You can do this by going to the Help menu, and by selecting Send Feedback Online and Product Suggestion.
We value your suggestions. If you have other questions about your purchase order, please let me know. I'm always here to help.