- Maintenance work on the production environment of the National e-Invoice System
- Scheduled for June 18, 2024, from 12:00 PM to 3:00 PM
- Affects the API production environment and the Taxpayer Application of the National e-Invoice System (KSeF)
- Temporary access issues may occur during this period
Source: podatki.gov.pl
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.