Data, Analytics & Privacy

What is Conversions API (CAPI)?

Koray YalçınAugust 25, 2026Technical Terminology

Definition Summary

"Conversions API (CAPI) is a secure integration mechanism that sends conversion events from your website, such as Leads and Sales, to an advertising platform directly from your server rather than through the browser. As a measurement and privacy standard, it uses server-side tracking and consent management to validate advertising analytics."

In-Depth Architectural Explanation

CAPI ensures that conversion data reaches your ads dashboard in full, unaffected by ad blockers or iOS privacy updates.

Real Estate & High-Ticket B2B Application

Sending prospects that sales reps mark as "Qualified Lead" or "Closed Won" in the CRM back through Meta CAPI to train the ad algorithm.

Practical Field Scenario & Workflow

When a prospective buyer submits a form, that data is sent to Meta CAPI at the server level, and actual sales attributed to the ad are measured with 100% accuracy.

Strategic Business Impact & ROI

It prevents pixel data loss and enables ad algorithms to find the audiences that drive real sales.

Frequently Asked Questions

Can CAPI and the Pixel be used at the same time?

Yes. Meta recommends a redundant setup, and Event Deduplication automatically prevents duplicate events.

Cite This Entry

APA 7th

Yalçın, K. (2026). What is Conversions API (CAPI)?. KorayYalcin.org PropTech & CRM Glossary. https://www.korayyalcin.org/en/glossary/conversions-api/