How to check if a new user is created in a group?

Question

Is there a way to identify, user's first time login to show a page and trigger process model upon configuring the details in that page for once i.e., only at first time login?

Larry Nguyen · Accepted Answer

You can default the user to a specific group. For this group you can have their user start page be a site that has a process model as the content. The process model can remove the user from the group, display the first time login page, and then terminate afterwards. 
 
An example of this would be having users accept the Terms and Conditions of system use on their first login (yes this can vary from program to program in that they might be required to accept terms and conditions on all logins, but let's just use this as simple example). All users can default to a "New User" group with a user start page specified for the "New User" group. The start page can be a site with a content "New User First Login" process model. The process model can display the Terms and Conditions and write to the database when the user accepts. Then the process model can remove the user from the "New User" group so that on their next login they don't see the Terms and Conditions page anymore. You can customize the process model to do anything else additional (e.g. write additional user details to DB, move them to appropriate group, etc.).

Larry Nguyen · Answer

I'd say under "User Start Pages" in your admin console, create a new entry for the group the user was added to with "Start Page URL" pointing to the main site or landing page you want the user to now load up moving forward when logging in.