Wipro Trigger Coding Scenario || Live Coding with Explanation

Here is the scenario -
Create a community user every time we create a contact in salesforce , then there is a public group 'Sales Users', add that user in this public group.
We have written this from scratch in this video and then we have optimised this.

[@AlbertsWorld42]

Thank you!!!!! You are amazing teacher!

[@prasadpund4176]

We had great session 👍

[@srajat]

I want to be a part of these sessions too. Please tell.

[@srajat]

How can I join session sir?

[@Ashishsingh-bh7mn]

How can I join these sessions?

[@pravinbharti90]

Sir i have completed the salesforce admin and development course recently, but in mock interview always failed in coding part, how can i improve it, may I request the part of you live class?

[@CodeForCoderscom]

I am getting this errro when i try to create user from dev console -- Insert failed. First exception on row 0; first error: UNKNOWN_EXCEPTION, portal account owner must have a role: [] ,