The app must need to be available on closed testing.(if you can’t setup properly you can text me.)
Here is the step by step process
Google group mail : fazlerabbi@googlegroups.com
1. Testing and release > Closed testing > Testers
2 . Select Google groups and put our google group mail : fazlerabbi@googlegroups.com
3. copy the link from the bottom of the page. (android)
4. Goto overview
5. Send 1 change for review