What it means
This rule counts ram:IssuerAssignedID elements in each ram:AdditionalReferencedDocument under ram:ApplicableHeaderTradeAgreement whose ram:TypeCode is 916. There must be one identifier element for the supporting document reference (BT-122). The test does not check its text, so an empty identifier element still counts. It applies to the EN 16931 and Extended profiles of Factur-X and ZUGFeRD.
Why it matters
The reference identifies the supporting document. Giving it one identifier element keeps the reference in the structure defined for BG-24.
How to fix it
Check the reference for each supporting document included with your invoice. In each affected ram:AdditionalReferencedDocument with ram:TypeCode 916, put the document's identifying reference, such as its number or file name, in one ram:IssuerAssignedID. Remove duplicate identifier elements. Remove the whole supporting document reference only if it does not apply. Export and recheck your invoice.
Once the file is corrected, check it again for free: Validate a ZUGFeRD invoice
Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice Beta
The rule as published
Element 'ram:IssuerAssignedID' must occur exactly 1 times. Where this rule applies
| Rule set | Version |
|---|---|
| Factur-X 1.09 EN 16931 | 1.0.9-2 |
| Factur-X 1.09 EXTENDED | 1.0.9-2 |
| ZUGFeRD 2.5 EN 16931 | 2.5.2 |
| ZUGFeRD 2.5 EXTENDED | 2.5.2 |
Check your file
Drop your e-invoice to see whether FX-SCH-A-000563 still fails, and which other rules do.
Related rules
- FX-SCH-A-000564 A supporting document needs exactly one type code
- FX-SCH-A-000565 A supporting document must use the type code 916
- FX-SCH-A-000566 The buyer contact email needs one address element
- FX-SCH-A-000567 The scheme of the buyer identifier must be an ISO 6523 code
- FX-SCH-A-000568 The buyer country must be a valid two-letter code
- FX-SCH-A-000569 The buyer's company registration scheme must use an ISO 6523 code