Insights · Playbook
Meta Conversions API: Setup Guide & Common Mistakes
The Conversions API sends events server-side for more reliable tracking. The common mistakes: poor event match quality, missing deduplication, and skipping offline conversions.

The Conversions API sends events server-side for more reliable tracking. The common mistakes: poor event match quality, missing deduplication, and skipping offline conversions.
Why the Conversions API matters
Browser pixels miss a growing share of conversions to ad blockers, privacy changes and lost cookies. The Conversions API (CAPI) sends events server-side, directly from your systems to Meta — restoring signal so the algorithm optimizes toward real buyers.
Your setup options
- Server-side Google Tag Manager — flexible and full control
- A native platform integration such as Shopify — fastest to ship
- A direct server-to-server build — for custom stacks
- Most robust setups pair CAPI with the browser pixel and deduplicate
The mistakes we see most
- Poor event match quality from missing customer parameters
- No deduplication, so events double-count
- Skipping offline and CRM conversions entirely
- Sending events without consent handling in place
Check it is actually working
Watch event match quality, confirm deduplication in Events Manager, and validate that server and browser events reconcile. A CAPI that is installed but sending weak data is worse than useless — it looks fine while quietly misleading the algorithm.
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