Thanks for chiming in on this thread, PEDROH.

At the moment, the Create Purchase Order option in the estimate page is only available in QuickBooks Desktop Premier and Enterprise.

While we're unable to convert the estimate to a purchase order in QuickBooks Desktop Pro, you'll want to create the transaction manually. The process of entering a purchase order is simple.

Here's how:

1. Go to Vendors, then select Create Purchase Orders.
2. Select Create Purchase Orders.
3. Fill out the fields, then click Save.

To learn more about creating an estimate or purchase order in QuickBooks Desktop, I've got these articles for reference: 

• Create an estimate in QuickBooks Desktop
• Create purchase orders in QuickBooks Desktop

You also have the option to upgrade your subscription to use the feature. Feel free to check out this link for more details: Upgrade QuickBooks Desktop Pro Plus, Premier Plus, or Enterprise.

If you have more questions or need help with other concerns, please let me know the details below. I'll get back to this thread to help you out. Take care!