You can create packing slips from the Orders section by following the simple steps below.
Step 1: Open Simple Invoice from your Shopify store’s “Apps” section.
Step 2: Select the order you wish to create a packing slip, select print, download, send, or upload, and select the Packing Slip option from the dropdown menu.
You can also customize the Packing Slip template from the our app’s “Templates” section.
In order to customize the template, Click on the Templates and select the Packing Slip from the Template Type dropdown menu.
After you make the necessary changes, Click on the Save button.