What it means
For each ram:FaxUniversalCommunication under ram:UltimateShipToTradeParty/ram:DefinedTradeContact in the header delivery section, this rule requires exactly one direct ram:CompleteNumber child. It checks element count, not whether the number is filled in or valid.
Why it matters
The Extended profile represents the fax number in one field within each fax communication block. A missing or repeated field does not match that structure.
How to fix it
Check the fax details for the final delivery recipient's contact. Keep one ram:CompleteNumber containing the intended number inside ram:UltimateShipToTradeParty/ram:DefinedTradeContact/ram:FaxUniversalCommunication. If the fax entry is not required for your invoice, remove the whole fax block instead. Export and recheck.
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:CompleteNumber' must occur exactly 1 times. Where this rule applies
| Rule set | Version |
|---|---|
| Factur-X 1.09 EXTENDED | 1.0.9-2 |
| ZUGFeRD 2.5 EXTENDED | 2.5.2 |
Check your file
Drop your e-invoice to see whether FX-SCH-A-000837 still fails, and which other rules do.
Related rules
- FX-SCH-A-000838 A phone entry for the final recipient needs one number field
- FX-SCH-A-000839 The final recipient's global identifier needs a scheme
- FX-SCH-A-000840 The final recipient's global identifier scheme must be allowed
- FX-SCH-A-000841 The final recipient's address needs one country field
- FX-SCH-A-000842 Too many regions in the final delivery address
- FX-SCH-A-000843 Country code is not allowed in the final delivery address