"We are creating a centralized team in Engagement that is responsible for Teen growth (DAP [Daily Active People] population penetration) and engagement (TS [Time Spent]/DAP), primarily focusing on FB Blue (and a handful of new apps)."

"We have a significant DAPDAPDaily Active PeopleCore Meta engagement metric counting the distinct people active on a platform in a day, reported per app and across the family. The source document lists it among the four teen metrics a "Youth Defense Task Force" was formalised to protect - "teen MAP, DAP, TS and PS" - from "experiments and rollouts across Facebook that negatively affect teen metrics".Full entry ↗ and Engagement (TS/DAP) problem with Teens and Young Adult people in the US. This is worse than we previously thought and getting worse over time. We know this is true in other markets (!US) and are in the process of getting analogous data." "This is not a FB Blue-app only problem. This is a FB Family problem. Our aggregate time spent share and retention for this segment is going down. Snapchat in particular and YT are gaining share in this segment." "68% of U.S. Teenagers are currently MAPMAPMonthly Active PeopleCore Meta engagement metric counting distinct people active on a platform in a month. Paired with DAP in internal goal-setting; the MAP/DAP ratio is used as a measure of how frequently a monthly user returns.Full entry ↗ on Facebook. 2 years ago 90% were. We expect this decline to continue as existing teens grow-up and new ones don't join." "Why didn't we realize this sooner?" • "We have had various teams looking at Teens for many years but only recently realized the seriousness of the problem: why?" • "30-40% of teens are registered as being >18; we have to model ages for accurate metrics" • "Our age model was incorrect since 2014" • "We updated the model in Q4 2015 to get to our current understanding of the situation" "We must 'win over' teens, not 'win back'" "Learning: Must solve problems for teens in a way that is significantly better than the existing products/solutions they use" "We are creating a centralized team in Engagement that is responsible for Teen growth (DAP population penetration) and engagement (TS/DAP), primarily focusing on FB Blue (and a handful of new apps)."