Facebook testing 'Listen Now' call to action button on desktop API?

One of the most popular ad formats on Facebook right now involves the call to action button, prompting a user to sign up or buy now, among other commands. Rob Kischuk of PerfectPost noticed that Listen Now, previously available only for mobile, has been added to the API for desktop ads. He notes this could mean Facebook is preparing to have the Listen Now button be available as a desktop ad option.

Kischuk described to Inside Facebook what he’s been seeing, in terms of calls to action:

“CALL” is still present but still doesn’t work.