Let us show you how to do this in less than 10 minutes using the tool "Ordering Builder".
Currently Android only shows a bell icon when there is any Push Notifications, until you change the icon.
Instructions to change it.
1.- Get in your Ordering Builder → Resources → Notifications
2.- Change the Icon, the icon must be White With Transparent Background, .PNG & 512px x 512px, in order to look good on the Push Notifications, like this:
ICON EXAMPLE TO DOWNLOAD
You can use this icon as an example for you to save some time 😀
NOTE: If you don't put the image as specified above, it'll look like this and it is wrong.
3rd- After you change this ICON properly you have to UPDATE & REBUILT your App in order to see the changes 👍.
We hope this Article helps you a lot to get better
Keep on Improving