Select System Preferences from the drop-down menu. How to customize Notifications for the Messages app on Mac
Read on to find out how to make Messages for Mac work for you. Whether it's customizing your notification sound or choosing where messages will keep saved files, you have plenty of options for customization. It's good, then, that you can change a number of these settings, big and small, to provide just the right experience for your needs.
Messages for macOS provides a suitable messaging experience out of the box, but the default settings aren't for everyone.
