# PEPPOL-T114-B02503

Source: https://xmlvalid.com/rules/PEPPOL-T114-B02503

> Attribute 'filename' MUST be present.

- Level: error
- Rule sets: Peppol Order Change rules 3.2
- Context: `/ubl:OrderChange/cac:AdditionalDocumentReference/cac:Attachment/cbc:EmbeddedDocumentBinaryObject`
- Test: `@filename`

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