The user has filled the basic registration form after which we have emailed the User id and password to complete the form.

However the user has not completed the form for which if we sent them the link then the user need to enter the credentials to complete the form.

Is there a way where user through a link we email directly logins and to the page where he can complete the form without compromising on security.

Please tell me solution for application security to navigate from email template to application main dashboard without asking login credentials to end user. displaying application main dashboard when click on email template link button in email.