Gravity Support Forums Topic: User Registration won't let me add an existing user

Gravity Support Forums Topic: User Registration won't let me add an existing user https://legacy.forums.gravityhelp.com/topic/user-registration-wont-let-me-add-an-existing-user Gravity Support Forums Topic: User Registration won't let me add an existing user en-US Tue, 07 Apr 2026 23:27:23 +0000 http://bbpress.org/?v=1.0.1 <![CDATA[Search]]> q https://legacy.forums.gravityhelp.com/search.php Carl Hancock on "User Registration won't let me add an existing user" https://legacy.forums.gravityhelp.com/topic/user-registration-wont-let-me-add-an-existing-user#post-33235 Mon, 22 Aug 2011 16:36:04 +0000 Carl Hancock 33235@https://legacy.forums.gravityhelp.com/ This is a WordPress Multi-Site limitation. All sites in a Multi-Site setup share the same User database tables. This means if a user registered on one site, and then tries to register on another site... they already exist. It poses a problem for the User Registration Add-On because it's difficult to handle. How do you know the user is the same to give them access? Do you go by password? If so what if they don't register with the same password? How does the user know that the sites are related so there information already exists? It's a very frustrating issue to try to implement a workaround that makes sense both to the admin and the user. One option is there is a plugin out there that lets the same email address be used multiple times on a WordPress site. So they could register and create another account with the same email, although they couldn't use the same username. Currently we do not have a good suggestion for how to handle this. Using Multi-Site when having users registering on individual sites is not an ideal situation. It's best to use multiple WordPress installs in this situation. You can run multiple WordPress installs from the same core files if you want to by having multiple wp-config.php files, one for each site, with the WordPress core files in a shared directory. chucktho on "User Registration won't let me add an existing user" https://legacy.forums.gravityhelp.com/topic/user-registration-wont-let-me-add-an-existing-user#post-33221 Mon, 22 Aug 2011 15:11:31 +0000 chucktho 33221@https://legacy.forums.gravityhelp.com/ Update. I managed the first issue with a plugin. Now registering on any site adds a user with a role to the main site. The plugin is "Multisite User Management" from wordpress.org. chucktho on "User Registration won't let me add an existing user" https://legacy.forums.gravityhelp.com/topic/user-registration-wont-let-me-add-an-existing-user#post-33193 Mon, 22 Aug 2011 12:03:14 +0000 chucktho 33193@https://legacy.forums.gravityhelp.com/ I have a main site and several sub-sites. I'm using the user registration plugin and it works fine with the exception of two problems: <ul> <li>when a user registers on one of the sub-sites they are not automatically added to the main site. Can you recommend something which will automatically register new users on the main site and assign a role"</li> <li> If a user is registered on one of the sub-sites and attempts to register on another sub-site using the same email address (we use email addresses as user names) an error is generated from the form stating that the email address is already in use. Is there a way for me to get around this?</li> </ul> Thanks, Chuck