Fehlercodes · KSeF 2.0 · Polen

KSEF-21180Teilweise

KSeF session status does not allow this operation

So lautet die Ablehnung wörtlich: „[KSEF-21180] The KSeF 2.0 API rejected your request because the session referenced by referenceNumber is in a state that does not permit the requested action. Typical example: attempting POST /sessions/online/{ref}/invoices while the session status is 415 (closing) or an already-terminal status such as 445 (no valid invoices). The invoice itself was never processed.“

Endpoints that surface this error include POST /sessions/online/{referenceNumber}/invoices, POST /sessions/online/{referenceNumber}/close, and POST /sessions/batch/{referenceNumber}/close. The Polish message returned is "Status sesji nie pozwala na wykonanie operacji". The error payload usually includes the numeric session status. States that block invoice submission include 415 (closing initiated), 425/435 (processing terminated), and 445 (finished — no valid invoices).

Was Sie bereithaltenDie korrekten Werte aus Ihrer Buchhaltung; wir zeigen Ihnen, welche Stelle betroffen ist.
Was wir tunOpen a fresh session and retry. Never reuse a referenceNumber after the session has moved past status 200.
So sieht der Befund ausBeispiel
BefundPrüfung nötig · KSEF-21180
Von IhnenDie korrekten Werte
DanachErneute Prüfung
NachweisSHA-256 und /verify-Link nach der Prüfung
Tritt oft zusammen auf
KSEF-21181Sellers are not identical for all invoices in a KSeF batchKSEF-21182KSeF concurrent export limit reachedPL-R-004KSeF session token invalid