Segment boost helps you find more prospects who resemble and behave like the best contacts from your current segment.
The system works by analyzing an existing segment to find those contacts who have proven to be most successful, and then recommends a new collection of contacts who are "most likely to yield business returns" because they resemble those performing well on the current campaign. The identified contacts are automatically added to the running campaign, and their level of success is then further analyzed for an additional boost. This process will repeat until the campaign reaches its configured size or end date.
For example, if you want to get more subscribers for your newsletter, this technology can analyze your entire Dynamics 365 database to find people who resemble the most engaged of those contacts who already subscribe, and then automatically add them to the segment for a custom journey that sends emails that promote joining the mailing list.