http://ht-ht.facebookwkhpilnemxj7asaniu7vnjjbiltxjqhye3mhbshg7kx5tfyd.onion/business/help/229435355723442
This means that Brand Lift measurement excludes teen audiences from all Brand Lift results. For ad campaigns linked to both Conversion and Brand Lift Tests, Conversion Lift measurement includes teen audiences (without age breakdown) whereas Brand Lift measurement excludes teen audiences from Brand Lift results.