Hello @ctmorgan78,

Let's customize the standard template of your sales transaction to fix the top margin of your packing slip.

1. Go to the Gear icon.
2. Under Your Company, select Custom Form Styles.
3. Find the standard template of your sales transaction.
4. Below the ACTION column, select Edit.
5. On the Design tab, select a template.
6. Select Edit print settings.
7. Under Page margins, enter your desired margin on the Top field.
8. Click Done.

I've got you the following articles below in case you need some ideas about customizing your invoice template or adding custom fields:

• Customize invoices, estimates, and sales receipts in QuickBooks Online
• How to add custom fields to invoices?

Please touch base with me here for all of your QuickBooks needs, I'm always happy to help. Thanks for dropping by.