Rule library
FatalField 21.007Sales Comparable
UAD1431 — A numeric identifier ('Comparable #') must be assigned for each sales comparable. For assistance with this message, contact the appraisal software vendor.
Where this rule lives in the report
Sales Comparison Approach; Prior Sale and Transfer History
Comparable
General Information; Comparable Transfer History
Report Section and Report Subsection as the GSEs define them — the black tab and grey bar you already read on the URAR.
- Severity
- Fatal — this blocks your UCDP submission and must be fixed before delivery.
- Triggered when
@ValuationUseType = "SalesComparable" and PropertyOrdinalNumber is not provided- Data Point Name
PropertyOrdinalNumber- Unique ID
1800.0192- Report Field ID
21.007- What this field means
- A positive, whole number that identifies the position of the property in the valuation analysis.
How to fix UAD1431
UAD1431 is a Fatal UAD 3.6 edit, so clear it before the appraisal report goes to UCDP.
- 01Open the Sales Comparison Approach; Prior Sale and Transfer History › General Information; Comparable Transfer History › Comparable area of the URAR and find Comparable.
- 02Check the condition that triggers UAD1431: @ValuationUseType = "SalesComparable" and PropertyOrdinalNumber is not provided.
- 03Correct the missing, invalid, duplicate, or inconsistent value before submitting to UCDP.
- 04Use the official Single-family (SF1) sample value on this page as a reference pattern, then re-run validation.
This fix guidance is derived from the published rule message, trigger logic, report location, field definition, and official sample data available for this rule.
Seen in the sample reports
How this field is populated in the official UAD 3.6 sample scenarios.
1Sales comp1Sales comp