Simple question I ask, as I do not manage to get a client’s number of (Google+ Local) followers to appear below their ads on Google. And I was wondering wether there was something I was missing somewhere.
Google can show how many Google+ followers your business has with your ads. These social extensions can appear with your ad without any setup if:
Your business has a Google+ page (you can create one using Google My Business)
Your Google+ page has a verified URL.
The domain of your Google+ page also matches the domain of your ad’s landing page. This means you can link to different pages, but they should be part of the same website.
Your Google+ page has recent, high-quality posts and a significant number of followers. For most businesses, this means about 100 followers.