FORM UC-36 (REV. 09-2026)UCDP MANDATE: 2026-11-02
UADCHECKPre-submission inspection of UAD 3.6 packages

UAD1472

FATAL

Official message text · Appendix H-1: UAD Compliance Rules — URAR, v1.5

The total number of dwellings must be at least 1.

Fatal — a single unresolved Fatal makes the entire submission come back NOT SUCCESSFUL (UCDP Hard Stop 401).

What triggers UAD1472

The published rule logic, verbatim:

If @ValuationUseType = "SalesComparable" and DwellingCount < 1

  • Checked for every Sales Comparable in the report.
  • Minimum allowed value: 1.
  • • Bound to MISMO data point DwellingCount at ../VALUATION_ANALYSIS/PROPERTIES/PROPERTY/PROPERTY_DETAIL/

How to fix it

This requirement applies to the XML data itself — the field is delivered in the submission file but is not printed on the form. Your form software populates it from the report data; correct the underlying entry, regenerate the package, and re-check.

Because this is a Fatal edit, do not submit until it is resolved — one Fatal bounces the whole package.

The free UADCheck inspection evaluates UAD1472 automatically — attach your package and see in seconds whether it fires.

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Related messages

Source: Appendix H-1: UAD Compliance Rules — URAR, v1.5 (public GSE document). Verified against the published spreadsheet; not affiliated with Fannie Mae or Freddie Mac.