The date does not use the expected format

Dates in CII syntax are expected in format 102 (`20260801`), not in extended ISO form.

This defect is fixed automatically. Test your invoice to find out whether it is affected, then apply the correction with the Pipeline Pro plan.

Common searches around this code

These phrases mirror what an integrator searches for: code, syntax, rule, business field and correction.

DATE-FORMAT The date does not use the expected formatDATE-FORMAT XSD schema of the profileDATE-FORMAT BT-2DATE-FORMAT correction automatique

Test your file with this error in mind

Upload the invoice involved: the report will say whether this code appears, where it appears in the document, and whether Factlint can only report it or also fix it.

To automate this check in an ERP flow, call the validation API and link every returned code to its public page.

Open the validator See the API

Why this error happens

The discrepancy almost always comes from the host language's default ISO serialisation. The value carried is correct, only its representation is not.

How to fix it

The conversion is deterministic and lossless. It is applied, then traced.

XML correction example

BEFORE (invalid)

2026-08-01

AFTER (compliant)

20260801

Automatic correctionPOST /v1/fix

This defect is among those the API rewrites itself: the corrected document comes back in the response. See the endpoint