KSeF 2026: what’s changing for sellers and e-commerce integrations

KSeF is the next step in mandatory e-invoicing in Poland it changes not only how invoices are issued, but also the requirements for sellers and e-commerce systems. In this session, we’ll show what exactly is changing from the perspective of online stores and integrators: from offline mode and corrections to the impact on sales processes and accounting. A short introduction to build a shared understanding and highlight what to focus on in 2026.