UAD1627
FATALOfficial message text · Appendix H-1: UAD Compliance Rules — URAR, v1.5
Provide the lookback period for sales in the market area.
Fatal — a single unresolved Fatal makes the entire submission come back NOT SUCCESSFUL (UCDP Hard Stop 401).
What triggers UAD1627
The published rule logic, verbatim:
If MarketInventoryLookbackMonthsCount is not provided
- • Checked for the Subject property.
- • Bound to MISMO data point
MarketInventoryLookbackMonthsCountat../VALUATION_ANALYSIS/PROPERTIES/PROPERTY/MARKET/MARKET_DETAIL/
How to fix it
On the URAR, this lives at: Market → Search Result Metrics → Sales in Past ___ Months. Complete or correct that field in your form software, regenerate the package, and re-check before submission.
Because this is a Fatal edit, do not submit until it is resolved — one Fatal bounces the whole package.
The free UADCheck inspection evaluates UAD1627 automatically — attach your package and see in seconds whether it fires.
Begin inspection →Related messages
- UAD1626 FatalProvide a description of the 'Market Boundary'.…
- UAD1629 FatalProvide the number of active listings, even if the value is 0.…
- UAD1630 FatalProvide the 'Highest List Price'.…
- UAD1631 FatalThe 'Highest List Price' must be greater than $0.…
- UAD1632 FatalProvide the 'Lowest List Price'.…
- UAD1633 FatalThe 'Lowest List Price' must be greater than $0.…
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.