For a requirement, I want to customize the handle_message method. Can anybody tell me how to override the OOB

If you want to customize it, you can fork the project and change whatever you’d like. As to specifcally what to do, that will depend on what you are trying to accomplish. What do you want to change?

I want to catch the exception in and stop retrying the running of action.

Which exception? It’s possible there’s another solution to the problem you’re facing. Can you explain it in more detail please? An example of the situation you’re trying to handle would be great too.

I want to send a message to the customer when there is an exception while run action. So, I am trying to customize and catch the exception in the run action method.