Not Found

If the telemetry_id is missing from the lookup request, or we cannot find it in our records, we will return a 404 telemetry_id_not_found error.

When you receive a 404 in the Fingerprint lookup response, we recommend blocking the request from proceeding. A missing or invalid telemetry ID could be a sign of an attacker trying to bypass DFP protections by generating fake telemetry IDs or not passing them into requests.

When DFP Protected Auth is enabled in Decisioning Mode and the telemetry_id is missing or not found, our SDK will always prevent the user's request from proceeding.