How do you prevent “consent contamination” across systems?

Consent contamination occurs when consent collected for one purpose is improperly used for another, or when consent data from one system is incorrectly applied in another context. This creates compliance and deliverability risks.

Preventing contamination requires clear data governance. Define what consent covers at collection time. Maintain separate consent flags for different communication types. When integrating systems, map consent carefully rather than assuming blanket permission.

Regular audits identify contamination risks. Review how consent data flows between systems. Verify that communications respect the original consent scope. Fix processes that might send to recipients without appropriate consent for specific message types.