1) In the Church App, tap on the "3 Lines" (AKA "Hamburger") menu.
2) Select "Settings".
3) Make sure "Push Notifications" is turned ON.
1) In Settings, open "Notifications".
2) Scroll down and select "Church App".
3) Copy all of the settings on this screen.
When a post is made in the Church App, from any group of which you are a memeber, you will hopefully see this banner notification!
These instructions are also available for download below.
Here are the 3 screen shots above, in case you want to (or it's easier) to download them.