You can watch the video tutorial, which provides a step-by-step guide through the process.
You can display the weight information of your products on your documents such as invoices, drafts, credit notes, packing slips, return forms, and quotes by following the simple steps below:
Step 1: Open Simple Invoice from your Shopify store’s “Apps” section.
Step 2: Click on “Templates” in the Simple Invoice dashboard.
Step 3: Click on the ‘Options’ section, scroll down, and click on the ‘Show Product Weight’ option under the ‘Line Items’.
Step 4: Please click the “Save” button to confirm your changes.