# DT-CIUS-PT-040

Source: https://xmlvalid.com/rules/DT-CIUS-PT-040

> The BT-42 does not meet the defined format: alphanumeric with size between 1 and 200.

- Level: error
- Rule sets: CIUS-PT rules (Portugal, UBL) 2.1.1
- Context: `//ubl:Invoice/cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:Telephone | //cn:CreditNote/cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:Telephone`
- Test: `matches(.,'^(.{1,200})$')`

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