Demystifying Salesforce Flow with HTTP Callout using OAuth 2.0 Open ID Connect (Video Tutorial)

Topics: 1. How to acquire Consumer Key and Consumer Secret, 2. Where to find Authorize and Token Endpoint URLs, 3. Setting the Callback URL on your 3rd Party App, 4. OAuth 2.0 Authentication Provider, 5. External Credential & Named Credential, 6. Create an Invocable Action that uses External Service, 7. Producing a Sample Response with Postman, 8. Build a fully-functioning Screen Flow, and 9. Detailed steps to fix the most common error messages!