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

UAD1657

WARNING

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

Provide 'Price Trend Source' name for each data source used for the development of the price trend analysis.

Warning — the submission can still come back Successful, but the finding is surfaced to your lender's review team.

What triggers UAD1657

The published rule logic, verbatim:

If DataSourceName is not provided in a given instance of DATA_SOURCE that captures the Price Trend Source

  • • Bound to MISMO data point DataSourceName at ../VALUATION_ANALYSIS/DATA_SOURCES/DATA_SOURCE/

How to fix it

On the URAR, this lives at: Market → Search Result Metrics → Price Trend Source. Complete or correct that field in your form software, regenerate the package, and re-check before submission.

UAD1657 is in UADCheck's reference library; automated coverage for it is on the roadmap. The inspection already runs the full GSE schema, the package-integrity layer, and every auto-checkable compliance rule — each report states exactly what was covered.

Begin inspection →

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.