Managing Shopify orders with a zero total amount

Goal

Configure how POP handles Shopify orders with a zero total (100% discounts, coupons, free gift items) to avoid unnecessary invoices or wasted numbering.

Prerequisites

• Access to Settings > Documents in the POP for Shopify app.

Steps

In the app’s Documents section, two independent options are available:

1. Disable document — if enabled, when the order total is zero POP generates neither the document nor an invoice number for that order.
2. Remove products — removes only the zero-total lines from the invoice (e.g. free gifts, 100%-discount items), keeping the document for the rest of the order.

The two options are independent: you can enable both, either one, or neither.

Verify

• With Disable document enabled, a zero-total order shows the message “Order total is 0. Document generation is disabled.” in the Orders table, and the generation buttons remain inactive for that order.
• With Remove products enabled, generate a document on an order with at least one zero-price line and verify that line doesn’t appear in the resulting PDF/XML.

Common errors

• The document isn’t created and I don’t understand why — check whether Disable document is enabled: this is the expected behavior for zero-total orders, not an error.
• Free gift lines still appear on the invoice — check that Remove products is enabled; if disabled, all lines (even zero-price ones) remain on the invoice.

Related configuration

See shopify-invoice-numbering to understand how invoice numbering behaves when a document is skipped due to a zero total.