Customize the alerts for every category within the new tabbed Gmail interface thus you will know once an e-mail is important.

The new Gmail options a tabbed interface that sorts e-mail into Primary, Social, Promotions, Updates, and Forums. whereas this will build your in-box look a little tidier, it can build the transition to the new style frustrating once it comes e-mail alerts.
Thankfully, you can set alerts for every category, and even disable them for others. once you get an alert on your android device, you will recognize what kind of e-mail you are receiving, and whether you need to browse it straight away.

Before you set the individual alerts, you need to create certain that notifications for your Gmail account are enabled. to try and do this: press the Menu button on your device while in Gmail and select Settings from the pop-up menu. Next, tap on your account name and confirm the box next to Notifications is checked.
Now you can set the individual alerts by doing the following:

Step 1: Open the slide-out menu within the Gmail app and then tap one among the categories.

Step 2: Press the menu button on your device and choose Label settings.

Step 3: tap the checkbox next to Label notifications, then select the sound alert, vibrate, and whether you’ll be notified of each new message in this category.
You can do the same steps for the other categories, and even assign distinctive alerts to everyone.