# AF-0100

Source: https://xmlvalid.com/rules/AF-0100

> Der angegebene Wert ist ungültig. Der Prozentsatz eines Skontoeintrages ist nicht eindeutig.

- Level: error
- Rule sets: e-Rechnung.gv.at checks (ebInterface) Fehlerliste, October 2026
- Context: `/*:Invoice/*:PaymentConditions`
- Test: `count(distinct-values(for $p in $discounts/*:Percentage return at:dec($p))) = count($discounts/*:Percentage)`

In English: Two discounts for early payment have the same percentage.

Validate a document against these rules: https://xmlvalid.com/validate