# Optimize purchase event conversions with Facebook CAPI (2024)

CAPI is a new method to send purchase signals from Pancake to Ads Manager, helping sellers optimize advertising efficiency up to 30%.

Previously, with Event API, advertisers were able to optimize advertising performance by up to 30% by sending purchase signals directly to Ads Manager through Pancake.

With CAPI, an upgraded version of the Event API, advertisers can expect even better results.

Let's start learning about CAPI with Pancake according to the articles below:

{% hint style="info" %}
If you read the documentary and are still confused, what should you do to install CAPI? The answer is **To-do-Nothing.**

Pancake and Meta have AUTOMATICALLY moved all customers to CAPI, so unless there is a special purpose (setting up CAPI for IG, controlling data sets on Event Manager,...) you don't need to do anything else. .
{% endhint %}


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