How can I print parts labels from a Purchase Order with the part description, the date and the customer name?

Hello, brendan. 

Let's check the custom form style and ensure the Description and the Date are mark-checked so that it will appear when you print your purchase order. However, in QuickBooks, regardless of whether you enabled the option to track expenses and items by customer under account and settings, the customer name does not appear on the purchase order when printed. The only way to show the customer name on the P.O. is by manually adding it in the description column. Alternatively, you can utilize a third-party app or take a screenshot for your recording input.  

Since a purchase order uses the standard template format, I suggest enabling the Description and Date columns. 

Here's how:

1. Go to the Gear icon and then choose Custom Form Style
2. Locate the standard template, then click on Edit.
3. Choose the Content tab.
4. Tap the middle parts of the template.
5. From Columns, place a checkmark beside the Description box and Date.

To personalize your forms, update the design, or add more information, check out this article for all the details: Customize your Invoices, Estimates, and Sales Receipts in QuickBooks Online. It's full of helpful tips and tricks to make your forms stand out and capture the information you need from your users. With a few simple tweaks, you can make your forms more engaging and user-friendly and improve the overall experience.

Additionally, I suggest checking this article that offers additional assistance regarding your top-selling products, inventory status, and cost of goods: Use Reports to See your Sales and Inventory Status. 

Please don't hesitate to reach out if you require further assistance with printing or personalizing your purchase order. I'm always here to lend a helping hand. Just keep me posted, or revisit this thread if you need anything else. Take care!