How to Configure User Authentication for the SharePoint Site
Applies To: System Center 2012 SP1 - Service Manager, System Center 2012 R2 Service Manager, System Center 2012 - Service Manager
The option to Sign in as Different User has been removed from the Service Manager SharePoint site template file included in System Center 2012 – Service Manager. You should not enable this option in SharePoint site template files because using the option can result in a submitted user request having an incorrect affected user.
If you want to support multiple users on a computer, you should use the following procedure to configure user authentication in the browser that you use to connect to the Self-Service Portal SharePoint site in System Center 2012 – Service Manager. Afterward, you should notify your end-users that they should use the Sign Out option when they are done using the Self-Service Portal.
To configure user authentication for the Self-Service Portal SharePoint site
Log on to the computer that hosts the SharePoint Web site with the user credentials of an end-user who will submit requests by using the Self-Service Portal.
Open Internet Explorer and then click Tools.
Select Internet Options and then click the Security tab.
Click Trusted Sites and then Custom Level.
Under User Authentication select Prompt for user name and password and then click OK.