In short, if you are the representative of a knowledge graph box/card for a company, profile, product or service, Google may show you the option to "suggest a change." Those changes that are made there reportedly happen within 24 hours. That is at least according to Aaron Bradley and Bill Slawski who gave it a try after I covered the news.
Basically, if you search for something and the knowledge graph box comes up, it Google thinks you are a representative for it, you will see this:
When you click suggest an edit, you can make changes and supposedly when those changes are made, the updates happen very quickly.
We've seen many cases of wrong or inaccurate information showing up in the knowledge graph, so this is a nice way to get them fixed.
The help document explains how Google thinks you are a representative:
- The Knowledge Graph card includes the topic's official website, YouTube channel, or Google+ page.
- You're an owner of the online presence (the topic's official website, YouTube channel, or Google+ page) that appears in the card. In some cases, if you're an owner of a topic's online presence, you might also be an official representative for related topics, such as a parent company and its subsidiaries.
- You're signed in to Google with the account you use as the owner of the topic's online presence.
- Your Web & App Activity is turned on.
It is great to see Google reacts fast to these change requests.
Forum discussion at Twitter.