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Conversions API (CAPI)
The Conversions API (CAPI) is Meta's server-side interface for sending web, app, offline, and messaging events directly from a business's server to Meta, rather than relying solely on the browser-based Meta Pixel. Because it is server-to-server, it is resilient to browser tracking restrictions, ad blockers, and signal loss, improving event match quality, attribution, and ad delivery optimization. Meta recommends pairing CAPI with the Pixel and deduplicating shared events; setup requires a dataset/Pixel ID, a Business Manager, and an access token.
Source: developers.facebook.com
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