KSEF-BUS-031 BEST PRACTICE Error KSeF Guard Only
Period start date must not be after period end date
Data początku okresu nie może być późniejsza niż data końca okresu
Problem
The billing period start date (P_6_Od — date from) is later than the end date (P_6_Do — date to). The billing period is inverted.
How to Fix
Correct the billing period on the invoice — the start date (P_6_Od) must be earlier than or equal to the end date (P_6_Do).
Source Reference
Brochure FA(3) + logical necessity
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
Invoice period start date
Data początkowa okresu faktury
“Start date of the period covered by the invoice P_6_Do [P_6_ To] The date is provided in the YYYY-MM-DD format (e.”
Brochure FA(3), Section P_6_Od (Page 46)
2
Invoice period end date
Data końcowa okresu faktury
“End date of the period to which the invoice relates - the date on which the supply of goods or delivery of services is completed.”
Brochure FA(3), Section P_6_Do (Page 46)