The author's username on the service from which they generated a post.

For example, if the post is a Tweet, contains the string you would find in twitter.user.screen_name or twitter.retweet.user.screen_name.


  1. Filter for content written by authors with "microsoft" in their username: substr "microsoft"

Resource information

Target service: The Common Target: Interaction

Target object: Interaction: Author

Type: string

Array: No

Always exists: No