The pattern that captures behavioral events from a server-side endpoint as the primary source, with client-side capture as the fallback for events the server can't observe directly. Resilient to ad blockers, browser tracking limitations, and consent state changes that affect client-side firing. Increasingly the default rather than the upgrade path, though many implementations are still in transition.
The capability a stack needs to run this pattern, and the vendors that provide it, on Martech Stack Builder.
Lower acquisition cost by feeding the bidding algorithms better conversions, deduplicated, consent-valid, and weighted by value, rather than just more of them
Watch the conversion events at the resolution that catches a deploy breaking the cart-success fire before reporting starts surprising people, and surface the fix as an operational alert rather than a quarterly investigation
Make the choice a visitor makes in the banner actually constrain what the server-side pipeline does with their data
Measure paid channel contribution honestly when tracking is partial, by separating what you observed from what you modeled
Define the events once, version them, and enforce the shape at write time, so analytics, activation, and reporting work against one data contract rather than negotiated reconciliations
Emit a server-set first-party identifier the brand controls, so the customer can be recognized after Safari ITP, third-party cookie deprecation, and the next round of browser changes still to come
Separate the conversions an influencer actually drove from the ones they took credit for, using owned tracking rather than the agency's screenshot
Feed customer lifetime value back into search bidding so the algorithm chases high-value acquisition, not just cheap conversions
Reclaim the conversion signal you lost to browser-side tracking decay
Make the server the primary record of what happened, with the browser as the backup rather than the system of truth