Skip to content
KSEF-BUS-301 GOV MANDATED Error Gov Enforced

Different seller NIP across invoice batch

Różny NIP sprzedawcy w partii faktur

Problem

Different seller NIPs (Podmiot1) detected across the batch. A KSeF submission batch should contain documents from a single taxpayer.

How to Fix

Verify the invoice batch — all documents should share the same seller NIP. Split invoices from different taxpayers into separate batches.

Source Reference

VAT Act, Art. 106e sec. 1 point 4 (NIP podatnika); KSeF — empiryczne wymaganie jednego NIP-u sprzedawcy w sesji

Page 124

View source PDF

Source Quote

“All invoices in a KSeF submission session must share the same seller NIP.”
Description SHA-256: bbb2756537cb…

Justification

BUSINESS LOGIC

Legal Basis Chain

1

Taxpayer identification data

Dane identyfikacyjne podatnika

“4) the number by which the taxpayer is identified for tax purposes;”
VAT Act, Art. 106e sec. 1 point 4 (Page 124)
2

KSeF — single-seller session

KSeF — sesja jednego sprzedawcy

“A KSeF submission session is bound to a single seller-taxpayer. An attempt to submit invoices with different seller NIPs in one session is rejected by the gateway.”
KSeF Guard conformance testing (empirical)