Fehlercodes · KSeF 2.0 · Polen

KSEF-21178Teilweise

KSeF UPO (Urzędowe Poświadczenie Odbioru) not found

So lautet die Ablehnung wörtlich: „[KSEF-21178] You requested the UPO (Urzędowe Poświadczenie Odbioru — the official acceptance confirmation) for a KSeF invoice, but the system could not find a UPO matching the provided criteria. Either the invoice has not yet been assigned a UPO, or the search parameters (referenceNumber, KSeF number, sessionReferenceNumber) do not identify a valid invoice.“

The 21178 code surfaces on GET /invoices/{ksefNumber}/upo and related UPO retrieval endpoints. Common root causes: the invoice is still in processing state (UPO not yet generated), the KSeF number in the request path is malformed, or the requesting entity does not have permission to see the UPO for that invoice. The response payload uses HTTP 404 with body code 21178.

Was Sie bereithaltenDie korrekten Werte aus Ihrer Buchhaltung; wir zeigen Ihnen, welche Stelle betroffen ist.
Was wir tunVerify the invoice reached terminal status before requesting UPO. Check the KSeF number format and the requesting user permissions.
So sieht der Befund ausBeispiel
BefundPrüfung nötig · KSEF-21178
Von IhnenDie korrekten Werte
DanachErneute Prüfung
NachweisSHA-256 und /verify-Link nach der Prüfung
Tritt oft zusammen auf
KSEF-21180KSeF session status does not allow this operationKSEF-21181Sellers are not identical for all invoices in a KSeF batchKSEF-21182KSeF concurrent export limit reached