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Error fixing·8 min read

The most common Fatal edits — and how to fix them

A field guide to the Fatal compliance edits that bounce submissions most often, each with the exact condition and the fix.

In this guide

Ask the copilot about this guide — it has read the whole hub and cites what it uses.

Fatal edits block your UCDP submission outright. These are the ones worth memorizing — each is common, each is avoidable, and each has a precise fix.

UAD1001FatalField 1.000Rule details →
Rule logic
If AddressLineText is not provided
Fix
Provide the subject's physical address line. Scoped to the subject specifically.
Seen in a sample
123 Falling Tree Ct in Single-family (SF1)
UAD1022FatalField 1.023Rule details →
Rule logic
If PropertyEstateType = "Other" and PropertyEstateTypeOtherDescription is not provided
Fix
Describe the estate type when you choose 'Other'.
UAD1085FatalField 8.001Rule details →
Rule logic
If ImprovementType = "Dwelling" and LivingUnitCount = 0 in a given instance of STRUCTURE_DETAIL
Fix
A dwelling must have at least one living unit. (Zero is only valid for an outbuilding.)
Seen in a sample
1 in Single-family (SF1)
UAD1229FatalField 4.105Rule details →
Rule logic
Cost approach used and SiteEstimatedValueAmount not provided
Fix
Provide the estimated site value when the cost approach is used.
Seen in a sample
$284,000 in Single-family + ADU (SF3)
UAD1264FatalField 1.001Rule details →
Rule logic
If OpinionOfValueAmount > 1,000,000,000
Fix
Check for a mis-scaled or mistyped opinion of value.
Seen in a sample
$491,000 in Single-family (SF1)

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