User accounts can be shared among all sites running on one Kentico CMS installation. This means that if a user creates an account on one site, they can automatically log-on to the other sites running on the same installation using the same credentials.
This behaviour can be switched on or off in Site Manager -> Settings -> Membership, using the Shared user accounts check-box.
• | If the check-box is enabled, user accounts created on one site will be shared among all the sites running on the installation. |
• | If the check-box is disabled, new accounts will be assigned only to the current site and not the others. |
However, registration web parts have the Assign to sites property. Using this property, you may determine which sites will the user accounts created via the web part be assigned to.
Page url: http://devnet.kentico.com/docs/devguide/index.html?shared_user_accounts.htm