When creating a "mobile push” outbound message, add a checkbox under the iOS configuration for enabling the “mutable-content” attribute in the push notification payload.
This property will allow developers to “intercept” the push notification when it reaches the device, and manipulate it before displaying it to the user.
One use case would be to set the count badge on the home screen icon. A similar request:
Another use case:
More info:
One example of this feature in a similar product:

