Hello, @litzi.
Welcome to the Community. Let me help you in printing and edit the packing slip in QuickBooks Online (QBO).
First, I'd like to reiterate what my colleague mentioned about how you print packing slips. Then, we can also download the packing slip by clicking the Download icon, then edit it outside QBO.
Regarding the APP, I recommend visiting our QuickBooks App Center. This way, we'll be able to find a third-party application that can customize the packing slip. You can follow the steps below in searching the app:
- Log into QuickBooks Online.
- Choose Apps from the sidebar menu.
- Enter a keyword in the search bar or click the Browse category button to filter the results.
Additionally, I suggest visiting the Import custom form styles for invoices or estimates articles. It provides additional details about the imported templates.
I've included this article for more information about managing invoices: How to add custom fields to invoices.
If there’s anything else I can help you with, click the Reply button and post a comment. I’ll be right here ready to help you. Have a good one.
