How to move SMS from hangouts to messenger app My Nexus 6p has 2 messaging services. Google Hangouts and the stock Google messenger app. I usually use the Google messenger app to send SMS, but the problem is that the message they respond with always comes through the hangouts app. Is there any way to change that so that all SMS always comes from the messenger app?

OS: Android 6.0.1
Carrier: Google Project Fi
(The phone is not rooted)

Any help would be much appreciated
Devin, I am not extremely familiar with stock Android, so I apologize if some of what I try to describe does not work exactly as I try to explain it.
The SMS messages on your phone is maintained in a single database.  That means you can use different messaging apps for SMS and the message "streams" or "history" stays the same regardless of the SMS app you use.
Within Android, you can decide which app is your default messaging app and by doing so you are saying which one will show you incoming messages.
You can change this default behavior by going into your phone Settings app and then Applications.  Inside that, there should be an option labelled Default Applications (I use a Galaxy, so it might be slightly different).  Inside Default applications, there should be a listing for Messaging App and your default SMS app listed.  I will assume that it is Hangouts.  You can tap that and change it to another app - and choose Google Messages.  You will still be able to use Hangouts for sending SMS messages, but incoming SMS notifications will by default show up in the Google app.  Also, you may need to disable SMS notifications within the Hangouts app so you don't get multiple SMS notifications for each incoming text message.
Hope this helps.
Rick