# FACTURAE-3.1.5.1

Source: https://xmlvalid.com/rules/FACTURAE-3.1.5.1

> TotalGrossAmount (…) is not the sum of the lines' GrossAmount (…).

- Level: error
- Rule sets: Facturae validation rules of the Spanish public sector Orden HAP/1650/2015, Facturae 3.2.x description of 6 June 2017
- Context: `/*:Facturae/*:Invoices/*:Invoice`
- Test: `$euro or abs($gross - $lineGross) le 0.01`

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