You can watch the video tutorial, which provides a step-by-step guide through the process.
You can send invoices as attachments by following the simple steps below.
Step 1: Open Simple Invoice from the “Apps” section of your Shopify store.
Step 2: Click on “Settings” in the Simple Invoice dashboard.
Step 3: Scroll down to the ‘Sending Options’ section, click ‘Send As Attachment’, and change it to “On”.
Step 4: Please click the “Save” button to confirm your changes.
