Step 1: Click on this page https://developer.amazon.com/ then log in or create your Amazon developer account.
Step 2: Click on Settings menu > Select Security profiles > click on Create a new security Profile button
Step 3: Complete the fields on the Security Profile Management screen > click Save
Step 4: Open Web settings tab > click Edit button
Enter your site URL into Allowed Origins field. Copy the Return URL from Social Login Pro app backend and paste into Allowed Return URL field then click Save
Step 5: Navigate to this link: https://developer.amazon.com/loginwithamazon/console/site/lwa/overview.html
Step 6: Select your Security Profile and click Confirm
Step 7: Enter your Privacy Policy URL and select app logo then click Save
Step 8: Open your Security Profiles page > select Web settings tab > copy the Client ID and Client Secret into Social Login Pro app back office.