To connect Voluum or RedTrack to redirect DSPs, you start by getting your campaign URL from the tracker and placing it in the DSP platform. This URL will carry the tracking info, like user ID or click ID. In your tracker, you also need to add the right postback from the DSP, so the system knows when a user takes action. Once these are set, your tracker will show what happens after each redirect. It helps with optimization and reporting. What other parts do you think are important when linking trackers with redirect DSPs?