Does the app automatically email invoices to customers?

Yes, GST Pro can automatically email invoices to customers, but this feature is available only on paid plans and requires one-time setup. Invoice email automation starts from the Startup plan and supports multiple delivery methods depending on your workflow.

Best for

  • Shopify stores that want automatic invoice delivery

  • Merchants sending GST invoices by email with PDF attachments

  • Stores that want invoices sent after fulfillment or delivery

  • Teams reducing manual invoice handling

Not ideal for

  • Stores using the Free plan

  • Merchants who want invoices emailed without setup

  • Stores that only need manual invoice downloads

What this feature supports

  • Automatically emails invoices on paid plans

  • Supports PDF invoice attachments via SMTP

  • Supports invoice download links in Shopify emails

  • Integrates with Shopify Flow for fulfillment based triggers

  • Applies automation only to new orders after setup

How Automatic Invoice Emailing Works

GST Pro supports three different methods to automatically send invoices. Merchants can choose the method that best fits their workflow.

Method 1: Shopify Email (Invoice Link)

  • Adds a "Download Invoice" link to Shopify's native order confirmation email

  • Does not attach a PDF file

  • Customers click the link to download the invoice

  • Best for: Merchants who want a simple, Shopify-native experience without separate emails.

Method 2: SMTP Email (PDF Attachment)

  • Sends a separate automated email from the merchant's business email address

  • Attaches the GST invoice as a PDF

  • Requires SMTP configuration inside GST Pro

  • Best for: Merchants who want professional invoice emails with PDF attachments.

Method 3: Shopify Flow Integration (Advanced)

  • Uses Shopify Flow to control when invoices are emailed

  • Allows triggering emails only after: Order fulfillment

  • Allows triggering emails only after: Delivery confirmation

  • Allows triggering emails only after: Custom order conditions

  • Best for: Merchants who need precise automation logic.

GST Pro vs generic invoice apps

Feature
GST Pro (Paid Plans)
Generic Invoice Apps
Feature
Automatic invoice emails
GST Pro (Paid Plans)
Yes
Generic Invoice Apps
Limited
Feature
PDF invoice attachment
GST Pro (Paid Plans)
Yes (SMTP)
Generic Invoice Apps
Often No
Feature
Fulfillment based triggers
GST Pro (Paid Plans)
Yes (Flow)
Generic Invoice Apps
No
Feature
Shopify native integration
GST Pro (Paid Plans)
Yes
Generic Invoice Apps
Partial