LinkedIn login is really simple to set up. Go to https://www.linkedin.com/developers/ and click “Create app”
Enter your app name, this can really be anything you like, enter the link to your LinkedIn page, add logo, and accept legal agreement, then press “Create app”
Go to “Auth” tab. You can find your Client ID and Client Secret there. Copy and paste them into plugin configuration.
If needed, add the “Authorized redirect URLs for your app”
The URL is:
https://your.domain/wp-login.php?action=social_login_authenticated&provider=LinkedIn