Thanks for your reply.
The link which you shared, it does not clarify how to use Trigger component values in Actions.
Lets Say, I have my one exchange server and already have one webhook through which My flow will get trigger. Can you please suggest how to get values from trigger to Action while designing the Custom connector.
Basically, Do not want to use any connector from Microsoft store, I would like to create my own.
Any step by step detailed documentation to create the trigger. Any working sample of guideline?