ksef-fa3
Generate and validate KSeF FA(3) e-invoices — Poland's mandatory structured invoice format (effective from 2026-02-01 for large companies, 2026-04-01 for all). Use this skill whenever the user asks about: issuing invoices to KSeF, FA(3) XML structure, mapping invoice data to the FA(3) schema, e-invoice validation, KSeF validator errors, P_12/P_13/GTU/Adnotacje fields, invoices for foreign buyers (EU, non-EU), foreign currency invoices, reverse charge, WDT, export, VAT exemption, advance invoices, corrective invoices, or any FA(3) logical structure question.
Installation and usage
Generate and validate KSeF FA(3) e-invoices — Poland's mandatory structured invoice format (effective from 2026-02-01 for large companies, 2026-04-01 for all). Use this skill whenever the user asks about: issuing invoices to KSeF, FA(3) XML structure, mapping invoice data to the FA(3) schema, e-invoice validation, KSeF validator errors, P_12/P_13/GTU/Adnotacje fields, invoices for foreign buyers (EU, non-EU), foreign currency invoices, reverse charge, WDT, export, VAT exemption, advance invoices, corrective invoices, or any FA(3) logical structure question.
Après l'installation, vous pouvez utiliser ce skill en exécutant la commande suivante dans votre terminal :
skills use ksef-fa3