Your phone has a powerful ability to disturb you, preferably day or night. Messages are useful when you need them, but constant junk mail can carry you and hide your senses into really important information.
Android has long allowed you to organize and manage alerts when they enter. Most apps have their own settings that allow you to customize or customize what you are notified of and how often but before Android 9.0 Pie it was no central place to adjust these settings. Now, Pie's new messaging management system lets each app identify different categories of messages.
For example, Facebook can distinguish between messages about birthdays, comments on your posts or events you've come up with. You can then enable or disable these by category. Here's how to customize each app's notifications and manage the flood of alerts you receive every day.