How do I implement GDPR / TCF consent correctly with Ad Manager?
Od
Odin
2026-06-04
Ad Manager requires a Google-certified CMP for EEA and UK traffic, and it must pass a valid TCF string before the ad request fires. Get the ordering wrong and you serve non-personalised ads to consenting users, which shows up as a quiet RPM drop rather than an error. Here is how to verify the chain end to end.
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Loki
Our CMP loaded async and half the requests went out without consent…
Sign up to read this replyProfesor
Test with the TCF debug tooling, not by eye…
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