Use an allowed format code for the issue date

Error FX-SCH-A-000638 Factur-X

Value of '@format' is not allowed.

Mandatory rule: As long as it is violated, the invoice is invalid and will be rejected by validators.
What is wrong

The non-empty value of the format attribute is not included in the code list used by this rule. The test also accepts an empty value.

What the rule means

The value of format identifies the format of the issue date. A non-empty value must correspond to an entry in the checked code list.

Please use an allowed format code for the issue date

The value of format on qdt:DateTimeString is not recognized as an allowed format code. A non-empty value must be included in the code list checked for this rule.

What to do
  1. Check the value of the format attribute on qdt:DateTimeString in FormattedIssueDateTime of the referenced document with ram:TypeCode 130.
  2. Use a non-empty value included in the code list applicable to this rule, or leave the value empty.
  3. Generate the invoice again and validate it.
Technical details

The test accepts an empty attribute value or a value present as an enumeration in codedb/cl[@id=17].

Where the rule applies

The rule applies to the format attribute of qdt:DateTimeString within FormattedIssueDateTime of the referenced document with ram:TypeCode 130.

Context (rule/@context)
/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ ram:AdditionalReferencedDocument[ram:TypeCode="130"]/ram:FormattedIssueDateTime/ qdt:DateTimeString
Test expression (assert/@test)
string-length($codeValue17)=0 or document('FACTUR-X_EXTENDED_codedb.xml')/codedb/cl[@id=17]/enumeration[@value=$codeValue17]