BR-CO-10
The sum of line net amounts (BT-106) does not equal the total of the individual line amounts (BT-131).
ErrorEN 16931UBLCII
Why it happens
Almost always a rounding difference: each line was rounded to 2 decimals but the total was computed from unrounded values, or vice versa.
How to fix it
Round every line net amount to 2 decimals first, then sum the rounded values into BT-106. Never sum first and round afterwards.
The official rule
EN 16931, EnglishSum of Invoice line net amount (BT-106) = Σ Invoice line net amount (BT-131).
Technical detail — where the rule is evaluated and the exact test
| Syntax | Context and assertion |
|---|---|
| UBL | cac:LegalMonetaryTotal |
(xs:decimal(cbc:LineExtensionAmount) = xs:decimal(round(sum(//(cac:InvoiceLine|cac:CreditNoteLine)/xs:decimal(cbc:LineExtensionAmount)) * 10 * 10) div 100)) | |
| CII | //ram:SpecifiedTradeSettlementHeaderMonetarySummation |
xs:decimal(ram:LineTotalAmount) = round(xs:decimal(sum(../../ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:LineTotalAmount)) * xs:decimal(100)) div xs:decimal(100) |
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