Step 1: Click on this page https://developer.atlassian.com/apps/create and log in with your Altassian account.
Step 2: Enter the app name, agree with Developer Terms and click "Create" button.
Step 3: Click "+ Add" to add APIs and Features.
Add Jira platform REST API, User REST API and OAuth 2.0
Step 4: Click "Configure" to navigate to OAuth 2.0 configuration page.
Step 5: Navigate to "App details" tab > Copy Client ID and Client Secret and paste them to Social Login Pro app configuration page