Integrations
KSeF for WooCommerce and Shopify: how to connect your store
A WooCommerce or Shopify store can issue KSeF invoices through a plugin or through a KSeF API such as Notaly's, which turns each order into a FA(3) invoice and submits it automatically. You do not need to write FA(3) XML or run your own KSeF integration. For most stores the API route is the fastest way to add e-invoicing without a Poland-specific engineering project.