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KSEF-CURRENCY-003 · KSeF · FA(3)

KSeF: KursWaluty missing for foreign currency

At least one foreign-currency line does not contain the required exchange rate.

FA(3)Last professional review: 2026-07-05

Meaning

At least one foreign-currency line does not contain the required exchange rate.

Typical cause

The currency was detected, but the line or tax exchange rate was not mapped.

Affected fields / XML paths

/Faktura/Fa/KodWaluty/Faktura/Fa/FaWiersz/KursWaluty

Invalid example

<KodWaluty>EUR</KodWaluty><FaWiersz><P_11>100.00</P_11></FaWiersz>

Corrected example

<KodWaluty>EUR</KodWaluty><FaWiersz><P_11>100.00</P_11><KursWaluty>4.3123</KursWaluty></FaWiersz>

Remediation steps

  1. Check the invoice currency.
  2. Document the rate source and date.
  3. Add the rate to each affected line.