Mobile marketing automation is when companies use special software to send messages to you on your phone. This can be things like texts or push notifications that pop up on your screen.
The software that companies use can be really smart and help them decide what message to send you based on things like your behavior, location, and even the time of day.
For example, if you visit a store frequently, the company might send you a message with a discount offer to try and get you to come back. Or if it's a really hot day, they might send you a message about their new line of summer clothes.
The goal of mobile marketing automation is to make sure that the messages you get on your phone are interesting and helpful to you, rather than just annoying spam.