Customers who joined using a social media account can also enjoy the services provided by the online store (place an order, receive coupons, discounts, and points) like other general customer accounts.
For age-restricted stores, social media login cannot be used since it does not call the date of birth data.
When a customer signs up with a social media account and deletes the account, the customer cannot join again using the same social media account.
When you change the client (App) ID your were issued with, you cannot sync the existing customer information and order information. Note that once the ID has been changed, it will be recognized as a complete new store.