# UBL-DT-07

Source: https://xmlvalid.com/rules/UBL-DT-07

> Binary object elements shall contain the file name attribute

- Level: error
- Rule sets: EN 16931 rules (UBL) 1.3.17, EN 16931 rules 1.3.16 (UBL), EXTENDED-CTC-FR rules (UBL) 1.4.0.04, Romanian RO e-Factura rules (UBL) 1.0.9
- Context: `//*[ends-with(name(), 'BinaryObject')]`
- Test: `(@filename)`

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