Attribute imputation in target payloads is now opt-in

Attribute imputation in target payloads is now opt-in. Previously, Faraday would automatically use data from cohabitants and neighbors to estimate missing attribute values — this now defaults to off, giving you explicit control over whether imputed data appears in your output.

To enable imputation for a target in API, set impute_payload: ["attributes"] in the target's representation, or if you're working in the Dashboard, check Impute missing attribute values when possible in the new target wizard. Learn more in our documentation.

Existing targets have been automatically updated to preserve their current behavior.

This feature is available for FIG v2 accounts only (all new accounts are FIG v2 by default). It applies to Traits only — imputation for modeled scores continues to run by default and cannot be disabled.

For more background, see our blog post on payload fallbacks.