Step 1: Open this page https://developer.paypal.com/developer/applications and log in with your PayPal developer account.
Head to “My Apps & Credentials” page and click on “Create App” button.
Step 2: Enter app name > Select app type > Click on “Create App” button.
(1) Scroll down to “Sandbox app settings” section > Click “Show” Return URL > Add Return URL provided by Social Login Pro app.
(2) On “App feature options” section, select “Log in with PayPal” option. Click on “Advanced options” link.
(4) Click on “Save” button to finish.
Step 4: Once the application is created, you will get the Client ID and Secret. Paste them into Social Login Pro app configuration page:
If this app is in SANDBOX mode, you can only log in with the PayPal account of your self – the administration via Social Login Pro. To enable login with PayPal for your customers, you need to activate your app to LIVE mode.
Please read the following article to know more detail on how to turn your app into LIVE mode: https://developer.paypal.com/docs/classic/lifecycle/goingLive/#