Hello, @davidmoschella.

I can see the importance of being able to modify certain things, such as packing slips to suit your business needs. Currently, the default template format of the built-in packing slip in QuickBooks does not include the SKU column.

In the meantime, you can create a customized Packing Slip in your QuickBooks account. Here's how:

     1. Go to the Gear icon.

     2. Choose Custom Form Styles.

     3. Click the New Style drop-down.

     4. Pick either a Sales Receipt or Invoice.

     5. From the Design tab, enter the name of the custom sales form.

     6. Select the Content tab.

         a. Double-click on the Header portion of the Sales Receipt.

         b. Change the name of the form to Packing Slip. 

     7. Hover to the middle portion of the sample sale form.

         a. Mark the following tick box: Date, Product /Service, SKU, and Quantity. 

     8. Click Done.

Now, you can manually create a customized Packing Slip. Just make sure to select the Packing Slip template you've created. 

Keep me posted if you have other questions about customizing your sales forms in QuickBooks. I'm always here to help.