BR-Z-09 error
What this rule checks
Explanation
For a VAT breakdown group whose category code is "Z" (Zero rated), the VAT category tax amount (BT-117) must be exactly 0 — since the rate is 0%, the computed tax is always 0 regardless of the taxable amount.
How to fix it
Set the tax amount to 0 for any VAT breakdown group coded "Z". If a non-zero tax amount is showing up here, check whether lines with a different VAT category were incorrectly grouped into this zero-rated breakdown.
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