Seller country code (BT-40) is missing. A postal address with country code is required.

Field: BT-40 (Seller country code)

Line item 1 is missing a description (BT-153).

Field: BT-153 (Line 1 — Item name)

VAT math mismatch in breakdown 1: 2000.00 × 19% = 380.00, but document states 480.00.

Field: BT-117 (VAT breakdown 1 — Tax amount)