I have a custom object. There I'm trying to add list button of content source JavaScript. The script is correct, I've copied it from existing functional script. However, I'm not able to see the button in any section (Button/ QuickAction/ Mobile and lightning action) of page layout to add it in the quick panel.
What could be the issue? The old list button was created in 2016. Does salesforce has stopped supporting JavaScript List buttons now? If yes than what is the alternate of it (is it creating LWC and add it in button action)
Kindly suggest, Thanks in advance.