{"id":138079,"date":"2025-10-20T15:11:23","date_gmt":"2025-10-20T15:11:23","guid":{"rendered":"https:\/\/glc.pl\/?p=138079"},"modified":"2025-11-04T09:28:40","modified_gmt":"2025-11-04T09:28:40","slug":"user-authentication-in-the-ksef-system","status":"publish","type":"post","link":"https:\/\/glc.pl\/en\/blog\/user-authentication-in-the-ksef-system\/","title":{"rendered":"User authentication in the KSeF system"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>To use the National e-Invoicing System (KSeF), it is not necessary to create an account within the system. However, identity verification and confirmation of permissions are required. 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