You can view insights to track engagement with your effects in the Facebook camera.
You'll need to wait a few hours after an effect goes live to start seeing insights.
Combined insights for all effects belonging to an owner, as well as insights for individual location-targeted effects, won't become visible until they reach a certain count.
To see insights for individual effects you've published to Facebook:
To see insights for all effects belonging to a particular owner (Facebook profile or Page):
You'll see 3 metrics - Impressions, Captures and Shares.
Insights don't include impressions of effects used in live videos or direct messages.
Impressions is the number of times an effect was shown on screen.
This includes when an effect is shown while someone is trying it out in the Facebook camera, and when the effect is displayed in a shared story or post on Facebook.
Impressions are also broken down by channel. You can see the number of times an effect was shown:
The number of times someone captured a photo or video that featured your effect in the Facebook camera.
The number of times someone took and shared a photo or video that featured your effect to a Facebook story or post.