KSEF-BUS-032 BEST PRACTICE Error
Mutual exclusivity of single delivery date (P_6) and invoice period (OkresFa)
Wzajemna wykluczającość daty dostawy i okresu faktury
Problem
Invoice contains both a single sale date (P_6 — delivery/service date) and a billing period (OkresFa — period from-to). Only one variant is allowed.
How to Fix
Choose one date variant on the invoice: either a single sale date (P_6) or a billing period (OkresFa). Both cannot be specified at the same time.
Source Reference
Brochure FA(3), Table 24 — P_6/OkresFa
Page 46
Source Quote
“Element containing the period to which the invoice relates - in the cases referred to in Art. 19a sec. 3, first sentence, and sec. 4 and sec. 5 item 4 of the Act. The element consists of the fields: P_6_Od (from) and P_6_Do (to).”
Verbatim
SHA-256: a57a115b85cb…
Justification
CROSS FIELDLegal Basis Chain
1
Field P_6 — single delivery date
Pole P_6 — pojedyncza data dostawy
“The date of delivery or completion of the delivery of goods or services or the date of receipt of payment, referred to in Art. 106b sec. 1(4) of the Act, if such date is specified and differs from the date of issue of the invoice.”
Brochure FA(3), Table 24 — Section P_6 (Page 45)
2
Element OkresFa — structural alternative to P_6 in FA(3)
Element OkresFa — alternatywa dla P_6 w strukturze FA(3)
“Diagram 24 of the Fa element structure shows fields P_6 and OkresFa as alternative date elements in an xsd:choice structure — an invoice may contain one or the other, but not both simultaneously.”
Brochure FA(3), Diagram 24 + FA(3) XSD schema (Page 45)