In my MVC application I use external config files to keep clean web.config. Some files are common and I added them to project as link from one location. For those files I set Co
See https://stackoverflow.com/a/38408867/2240453 Long story short: You can add
to differentiate configuration (deploy/release so debug/deploy version) You can add transformation . It's quite handy to use them anyway.
(Yes, i know the topic is solved, but maybe someone will find this information useful as I did)