Question: I'm running two apps on Heroku, one being myapp-production and the other one being myapp-staging.

For some reason however, the staging app uses the production environment configuration rather than the staging configuration, which I have defined in staging.rb.

The way I set up the staging app was by running 

```
heroku create --stack cedar --remote staging

```

and afterwards

```
heroku config:add RACK_ENV=staging --app myapp-staging

```

Yet myapp-staging is still using the production configuration. Any ideas why and how to address that?

Answer: 
It's important to add RAILS\_ENV=staging too

```
heroku config:add RAILS_ENV=staging --app myapp-staging

```
Did you restart your dynos (`heroku restart`) after making this change to your configuration?