Conversions API (CAPI)

A server-side feed that sends conversion events to Snapchat directly from your systems instead of through the browser.

You send events, purchases, leads, sign-ups, from your server or backend straight to Snapchat's Conversions API, bypassing the browser entirely. Because it does not depend on the user's device, it catches conversions the pixel loses to ad blockers, cleared cookies, and privacy limits. You run it alongside the pixel, matching events so the same conversion is not double-counted, to give optimization a fuller picture.

A purchase completes on your server after payment clears. Your backend posts that event to the Conversions API with the order value, so it lands in Snapchat's reporting even if the user's browser blocked the pixel from firing. Snap deduplicates it against any pixel signal for the same order.

CAPI is not a pixel replacement, it is the pair. Send server events without proper event IDs and matching and you either double-count conversions or fail to deduplicate, which corrupts your numbers worse than the gap you set out to close. Set up deduplication first; then the two sources add coverage instead of noise.

Run both, deduplicate cleanly, and you finally see most of what actually converted.