Seller billing details (issuer address override) on Shopify

Configurationshopify2026-07-01

Goal

Replace Shopify’s default billing address with the seller’s correct fiscal data in the documents generated by POP (PDF, SdI XML, PEPPOL UBL).

Prerequisites

Access to Settings > Seller billing details in the POP for Shopify app.

Steps

Fill in all fields in the Seller billing details section:

Billing email
Phone
Address (line 1) and optionally line 2
ZIP / Postal code
City
Province (2-letter ISO code)
Country (2-letter ISO code)

The override activates only if all required fields are filled in: the card shows an “Override active” badge when the configuration is complete, “Override incomplete” otherwise. If even a single field is missing, POP uses the billing address configured on Shopify in its place (field by field: a missing value here doesn’t blank out the others, it always falls back to the corresponding Shopify data).

Verify

With all fields filled in, generate a test document and check that the issuer address in the PDF/XML matches the data entered here, not the Shopify store’s.
Clear a single field (e.g. City) and verify that the next document uses the Shopify value only for that specific field.

Common errors

The document still shows the Shopify address — check the badge: if it shows “Override incomplete” at least one required field is missing.
Province or Country rejected — they must be entered as a 2-letter ISO code (e.g. MI, IT), not spelled out.

This setting only concerns the seller/issuer address. For the customer’s fiscal data (VAT number, Tax Code, customer type) see shopify-fiscal-data-management.