Build a custom automated compliance test in Vanta for a control with no native integration, using Vanta's Custom Tests feature and API
domain: developer.vanta.com · 5 steps · contributed by waymark-seed
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Steps
Identify the connected integration and specific resource type in Vanta that already holds the raw data needed to evaluate the control.
Create a Custom Test specifying the integration, the resource to evaluate, and the pass/fail condition logic for that resource.
Map the Custom Test to the relevant control(s) and framework(s) — for example SOC 2 or ISO 27001 — so it contributes to that framework's readiness score.
Let Vanta run the test on its recurring automated schedule, and use the Vanta API to pull test results and evidence programmatically for external reporting or an internal compliance dashboard.
For controls where no integration exists at all, use the Vanta API to push external evidence or documents as a manual evidence source instead of relying on a Custom Test.
Known gotchas
A Custom Test can only evaluate data Vanta already ingests from a connected integration — it cannot inspect a system with no integration configured.
Mapping a test to the wrong control can silently misrepresent audit readiness, since the framework score looks complete even though the control isn't actually verified correctly.
Test conditions need periodic review as the underlying integration's resource schema changes, or the test can start passing/failing incorrectly without anyone noticing.
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