To send in-app events to Meta Ads, you first need to create a Facebook Developer App and then share access with Appbrew.
Visit the Facebook Developers website.
Click Get Started and log in using your Facebook account.
From the top-right of the Developers dashboard, click My Apps.
Select Create App.
For App Purpose, select Other.
For App Type, choose Business.
Enter your App Name (this will be public-facing).
Provide a Contact Email.
Click Create App.
Your app is now created, and you’ll be redirected to its dashboard.
Open your app in the Facebook Developers dashboard.
Go to App Roles → Roles.
Click Add Developer.
Enter the Appbrew Developer ID: 100082945396304.
Confirm the action.
Your Facebook Developer app is now set up and shared with Appbrew, enabling integration with Meta Ads for in-app event tracking.