Only detecting whether the mobile phone number is registered with FB can only obtain the basic valid number. It lacks complete data of UID and homepage, and cannot support in-depth operations. The industry has multiple advanced problems:
Only mobile phone number, no unique UID, poor ad custom audience matching
Unable to view the user's homepage and identify the true quality of customers
Hierarchical operations lack core identification, and private domain customer management is chaotic.
Blindly add friends through private messages, invalid operations trigger Meta severe risk control
Manually checking UID and homepage, the operation efficiency of massive numbers is extremely low
Lack of homepage information makes localized marketing and building customer trust difficult
