- Additional update work will be conducted on the test environment of the National e-Invoice System API and Taxpayer Application KSeF on November 6, 2023, from 16:00 to 20:00.
- Temporary difficulties in accessing these environments may occur during this time.
- Apologies for any inconvenience caused.
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.
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