The constraint of the Phone number assumes that the target users will have a phone number of exactly 8 digits long and start with 9,8,7 or 6, though the target users could be other countries. Other countries may have longer phone numbers, which the app does not support and hence prevents members of restaurant teams from other countries from using the app.
The constraint of the Phone number assumes that the target users will have a phone number of exactly 8 digits long and start with 9,8,7 or 6, though the target users could be other countries. Other countries may have longer phone numbers, which the app does not support and hence prevents members of restaurant teams from other countries from using the app.