refers to software platforms and technologies designed for marketing departments and organizations to more effectively market on multiple channels online and automate repetitive tasks.
It's a suite of tools and analytics used to help nurture leads. It is a software that focuses on the definition, scheduling, segmentation and tracking of marketing campaigns.
Marketing automation includes automating the more repetitive tasks of nurturing a lead, like sending emails and social media posts. While automation allows you to free up resources, make sure to always include a human touch from time to time!