Sorry I didn’t get what you mean by " everything to show up on the front end automatically".
What I mean is if I have configured the “configuration.yaml” file then the switches and sensors buttons or tabs should show up on the home assistant or not?
Is it required that those mqtt devices should be connected in the network?
Because if it is not required then something is wrong with my setup as nothing is shown up on the home assistant.
That’s exactly what I asked, if you thought EVERYTHING you configured should just show up on the front end. Manually configured items need to be added to the front end. Now would be a good time for you to learn lovelace.
No, as I already stated. It is not required.
Because you have not configured anything to show up on the front end…