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BR-TMP-6

A date is not in the YYYY-MM-DD format

Validation rule of XRechnung 3.0.2 (KoSIT, Schematron 2.6.0) · Level: Warning

What the message means

A date is not in the YYYY-MM-DD format.

What the issuer needs to change

Send dates in the format 2026-10-23.

Your invoice reports BR-TMP-6? Check it with SmartFormular E-Rechnung lite, free to try until 31 December 2026: the tool shows every finding with an explanation, the invoice in readable form and a GiroCode to pay – in your browser, no upload.

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Origin

Rule set: XRechnung 3.0.2 (KoSIT, Schematron 2.6.0)
Syntax: UBL
Level: Warning

Original rule text

Datumsangaben in UBL müssen im Format JJJJ-MM-TT (YYYY-MM-DD) übermittelt werden.

Source: KoSIT, XRechnung Schematron 2.6.0, Apache License 2.0

Technical details for IT

UBL

Context: cbc:IssueDate | cbc:DueDate | cbc:StartDate | cbc:EndDate | cbc:ActualDeliveryDate | cbc:IssueDate | cbc:TaxPointDate | cbc:PaymentDueDate
Test: not(matches(normalize-space(text()), '^\d{4}-\d{2}-\d{2}$'))

Related rules

BR-TMP-3The price base quantity or unit differs between gross and net price (BT-149, BT-150)
BR-TMP-4An attachment has more than one description (BT-123)
BR-TMP-5One attachment entry contains several files (BT-125)
BR-TMP-7A date is not in the YYYYMMDD format with format code 102

All validation rules

Technical explanation by robin.vision, not tax or legal advice. Rules as of 31 August 2026 (KoSIT validator configuration).