You can display gift card payments on your invoices by following the simple steps below.
Step 1: Open Simple Invoice from your Shopify store’s “Apps” section.
Step 2: Click on the “Templates” on the Simple Invoice dashboard.
Step 3: Click on the Options section, and click on the Show Gift Card Transaction under the Order Details.
Step 4: Click on the Save button.
Important Note: Since every store in Shopify stores this data differently, you may need to create a support ticket with an example order number from the Support section or by clicking here.