ContribucionesMost RecentMost LikesSolutionsRe: Can't invite to SyncUp Kids group Yes, exact same thing going on with me, maybe they need to update the app or something…. Please let me know if you get it solved at the store (but like you I doubt that is likely). I hope tmobile tech support reads this as well! Re: Can't invite to SyncUp Kids group Same issue here. Cant add my wife to family group, same error!