Update: I have released a smart link generator to have these items created automatically, please find this here: http://jackstromberg.com/o365-smart-linksso-link-generator/
Synopsis: One of the biggest problems I have seen with Office 365 is ease in accessibility to all of the Office365 resources. As pointed out on many of the Microsoft forums, SharePoint, CRM, Skydrive, etc. do not automatically complete a single-sign on request when browsing the website.
Problem: When a user browses https://mydomain.sharepoint.com for example, the user is prompted to enter in their email address. What a user expects is that they should automatically be logged in and see sharepoint when navigating to https://mydomain.sharepoint.com Additionally, for whatever reason, users cannot remember the website address to https://mydomain.sharepoint.com Instead, they want to do something like http://sharepoint.mydomain.com
Solution: Create name branded "fancy URLs" that will complete an idp claim to give the user a true SSO experience.
- Open up Internet Explorer
- Navigate to https://mydomain.sharepoint.com
- Press F12 to open up the developer tools console (I am running IE 11, the console looks way different than previous versions of IE)
- Scroll down and select the icon that looks like a little WiFi antenna
- Click the green play button
- Type in your email address as you would to login to sharepoint ([email protected])
- You should be redirected to your ADFS server and inside the network console, you should see a link like https://sts.mydomain.com/adfs/ls/?.................. Copy this link into notepad.
- Remove the extra stuff from the debug console
- Remove everything from cbcxt=..... to wa=wsignin1.0
- Remove the ct%3D1386214464%26 and bk%3D1386214464%26 parameters
- Next, open up another new notepad document named index.html and paste the following text into it
- Replace https://sts.mydomain.com link goes here with your new smart link and save the document.
- Upload the index.html file to one of your your webservers
- Create a new A record called sharepoint.mydomain.com pointing to your webserver
- Now when a user browses http://sharepoint.mydomain.com, the user will automatically be redirected to your secure ADFS Proxy and authenticate automatically.
You will need to repeat the steps above for each of the Office 365 products your company uses. The federated addresses do change, so you will have to follow all of the steps over again for each Smart Link you wish to create.
Here is an official article on creating smart links: http://community.office365.com/en-us/wikis/sso/using-smart-links-or-idp-initiated-authentication-with-office-365.aspx