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Error

FX-SCH-A-000934: The payer's telephone block needs exactly one number

In short

Error: fails the selected checks.

FX-SCH-A-000934 means the telephone block in the payer's contact details has no number, or more than one. Put exactly one telephone number in it, or remove the block.

On this page

What it means

The contact person of the payer (ram:PayerTradeParty/ram:DefinedTradeContact) can have a telephone number (ram:TelephoneUniversalCommunication). The block must contain exactly one number (ram:CompleteNumber). The rule fails when it is empty or holds two.

Why it matters

A telephone block without a number, or with two, does not match the Extended profile structure. The file fails the check and the recipient can reject it.

How to fix it

Open the contact details of the payer in your invoicing software. Enter one telephone number, or clear the field if you have none. If you have two numbers, keep the one the recipient should call. In the XML, ram:TelephoneUniversalCommunication must contain one ram:CompleteNumber.

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
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether FX-SCH-A-000934 still fails, and which other rules do.

Updated 5 November 2026