# BR-DEX-13

Source: https://xmlvalid.com/rules/BR-DEX-13

> Die maximale Anzahl zulässiger Nachkommastellen für das Element "Third party payment amount" (BT-DEX-002) ist 2.

- Level: error
- Rule sets: XRechnung 3.0 rules (UBL) 2.6.0
- Context: `/ubl:Invoice/cac:PrepaidPayment[$isExtension]`
- Test: `string-length(substring-after(cbc:PaidAmount, '.')) <= 2`

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