Hi @mushlih
By default Nextend Social Login only tries to store the basic profile information like:
and the access token.
The stored information can be seen in the WordPress users table, the same way as the details of the WordPress accounts registered with the traditional registration form.
If you don’t want to store these details, you can disable the at our Global Settings > Privacy tab: https://nextendweb.com/nextend-social-login-docs/global-settings-privacy/
Also it is important to mention that, the details mentioned above can only be stored if the provider returns it. E.g.: Facebook gives the users an option to hide their email address.
Note: if you rather meant the Sync data feature of the Pro Addon, then please open a support ticket:
since on this forum we only allowed to give support for the Free version.
Best regards,
Laszlo.