BR-CO-17 error
What this rule checks
Explanation
Within each VAT breakdown group (BG-23), the VAT category tax amount (BT-117) must equal the VAT category taxable amount (BT-116) multiplied by the VAT category rate (BT-119) divided by 100, rounded to two decimals. This is a per-category-group calculation, one level below the header-level BR-CO-14 that sums these amounts together.
How to fix it
For the specific VAT breakdown group that failed, recompute taxable amount × rate / 100 and round to two decimals; compare against the tax amount currently in that group. A common cause is rounding the tax amount from the individual line/document amounts instead of from the group's own taxable-amount total.
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