E-invoicing & validators

Verify FA(3) fields and lines before KSeF

Check P_13_9, P_15, tax codes and every invoice line directly in Dynafis.

Updated: 2026-07-10

The KSeF preview appears on every reviewed invoice once the PL exporter is active. Downloading XML is no longer required for business verification.

Summary fields

The view shows RodzajFaktury, P_13_9, P_13_10, P_15 and other emitted summary fields. For an EU B2B service classified as np II, net belongs in P_13_9.

Line mapping

Every extracted line is shown with P_7, P_8B, P_8A, P_9A, P_11, P_12 and, when applicable, KursWaluty.

Readable XML view

For preview, XML is well-formed, indented, accompanied by a line count and rendered in a high-contrast monospace view. This display-only formatting changes neither the hash nor the bytes of the artifact submitted later.

Blocking checks

Missing lines, inconsistent quantity × price arithmetic, total mismatches or invalid FA(3) mapping block submission. Mapping, validation and raw XML remain separate tabs.

KSeFFA(3)P_13_9line items
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