# FX-SCH-A-000632

Source: https://xmlvalid.com/rules/FX-SCH-A-000632

> Value of '@format' is not allowed.

- Level: error
- Rule sets: Factur-X EXTENDED rules 1.09.2
- Context: `/rsm:CrossIndustryInvoice/rsm:ExchangedDocument/ram:EffectiveSpecifiedPeriod/ram:CompleteDateTime/udt:DateTimeString`
- Test: `string-length($codeValue3)=0 or document('FACTUR-X_EXTENDED_codedb.xml')/codedb/cl[@id=3]/enumeration[@value=$codeValue3]`

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