Rule library
FatalField 1.047Subject
UAD1171 — The unit identifier must be unique.
Where this rule lives in the report
Unit Interior
{No Label}
Report Section 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
UnitIdentifier is not unique across all instances of PROPERTY_UNIT_DETAIL- Data Point Name
UnitIdentifier- Unique ID
0700.0114- Report Field ID
1.047- What this field means
- An unique alphanumeric string used to identify and/or differentiate between multiple units located on the property.
How to fix UAD1171
UAD1171 is a Fatal UAD 3.6 edit, so clear it before the appraisal report goes to UCDP.
- 01Open the Unit Interior › {No Label} area of the URAR and find UnitIdentifier.
- 02Check the condition that triggers UAD1171: UnitIdentifier is not unique across all instances of PROPERTY_UNIT_DETAIL.
- 03Correct the missing, invalid, duplicate, or inconsistent value before submitting to UCDP.
- 04Use the official Single-family + ADU (SF3) 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.
Primary DwellingSubjectUnit 1Subject