Can we republish the app which is already published on cloud?
I have published app on cloud after publishing I had selected responsive web option and copied the url of the sandbox published app but right now as per requirement I want that app's sandbox url of choice phone web so after copying that url I will be able to only for mobile devices. So how can I make the changes for this ?
The URL will be the same for responsive and Phone Web navigation profiles. It is not possible to have a URL that will only open on a phone browser that will not work on a desktop. If you set up a Phone Web profile, then users on phones will load the phone web profile first. If you want things to only work on phones, you will need to create a phone-specific app using the native profiles.