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Error

FX-SCH-A-000448: Add the delivery date format attribute

In short

Error: fails the selected checks.

FX-SCH-A-000448 means your delivery date (BT-72) is missing its format attribute. Add a code matching the date representation, such as format="102" for YYYYMMDD.

On this page

What it means

The udt:DateTimeString inside ram:ApplicableHeaderTradeDelivery/ram:ActualDeliverySupplyChainEvent/ram:OccurrenceDateTime must have a format attribute. This rule checks only that the attribute exists, not its value or the date contents. It applies to the Basic WL, Basic, EN 16931 and Extended profiles of Factur-X and ZUGFeRD.

Why it matters

The format code declares how the delivery date is represented. Its presence alone does not establish whether the code is allowed or the date is correct.

How to fix it

Check your delivery date field and its XML export. If you generate the XML, use your date formatter to write YYYYMMDD and set format="102" on the delivery date's udt:DateTimeString. Export your corrected file and recheck it.

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

Attribute '@format' is required in this context.

Where this rule applies

Rule set Version
Factur-X 1.09 BASIC WL 1.0.9-2
Factur-X 1.09 BASIC 1.0.9-2
Factur-X 1.09 EN 16931 1.0.9-2
Factur-X 1.09 EXTENDED 1.0.9-2
ZUGFeRD 2.5 BASIC WL 2.5.2
ZUGFeRD 2.5 BASIC 2.5.2
ZUGFeRD 2.5 EN 16931 2.5.2
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-000448 still fails, and which other rules do.

Updated 6 November 2026