You can add additional terms to 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 Terms and Notes section on the template preview and add your additional terms. All text fields are inline editable.
Also, you can add your additional terms as a secondary page from the Other Settings section. You can get more information from our guide here.
Step 4: Click on the Save button.