Automatic email delivery of the PDF invoice on Shopify

Goal

Enable automatic email delivery of the PDF invoice, understand which address it is sent from, and where the customer’s replies go.

Prerequisites

• A paid plan (Basic or higher): automatic sending is not available on the Free plan.
• Access to Settings in the POP for Shopify app.

Steps

POP has two distinct email settings, which are not interchangeable:

1. Automatic invoice email (card “Automatic invoice email”) — if enabled, POP sends the PDF to the order’s email address every time a document is generated, whether manually from the Orders app or automatically. Here you can also set:
   • Reply-to email address — the address that receives the customer’s replies (it is not fixed: it is configurable per store).
   • Merchant copy email address — if set, every send (manual or automatic) also sends a BCC copy to this address, invisible to the customer.
2. Automatic PDF email on payment (separate card) — controls whether, when an order is paid, the PDF is automatically sent to the customer and/or in copy to the merchant. The toggle for the merchant requires that the copy email address above is already configured.

Verify

• Generate a document from a test order and check that the PDF arrives at the email address associated with the order.
• Reply to the email you received and verify that the reply reaches the address set in Reply-to email address (if not set, the email is still sent from noreply@popapi.io).
• If you set the merchant copy email address, check that every send also produces a BCC to that mailbox.

Common errors

• The customer doesn’t receive the PDF — check that you are on a paid plan and that Automatic invoice email (or Automatic PDF email on payment, depending on the trigger) is enabled.
• The customer’s replies get lost — set Reply-to email address: by default emails are sent from noreply@popapi.io, an unmonitored address.
• The merchant doesn’t receive the copy — check that Merchant copy email address is filled in; without that value, the “copy to merchant” toggle in the automatic send on payment has no effect.

Related configuration

To customize the content of the PDF itself (footer, logo), see shopify-customize-invoice-pdf.