VSO Alternate authentication credentials

When you setup a link between a Life Cycle Services (LCS) project and a Visual Studio Online (VSO) project, you need to specify some "Alternate authentication credentials" to login to VSO from LCS.

On VSO you setup these credentials by going to "My profile \ Security \ Alternate authentication credentials", tick the "Enable alternate authentication credentials" box an enter the alternate user id and password you want to use from LCS.