Boost Security with Single Sign-On (SSO): A Comprehensive Guide

Single sign-on (SSO) lets users access authorized network resources with one login. You validate usernames and passwords against your corporate user database or other client app rather than Salesforce managing separate passwords for each resource.

What Is SSO?

Single Sign-On (SSO) is an authentication process that allows users to access multiple applications with just one set of credentials. Instead of remembering several usernames and passwords, users can sign in once and access all connected systems.

How Does SSO Work?

SSO works by establishing trust between an identity provider (IdP) and a service provider (SP). The identity provider authenticates the user, and the service provider allows access based on this authentication. Here’s a simple breakdown of the process:

• User Requests Access: The user tries to access an application that supports SSO.
• Identity Provider Authenticates: The identity provider verifies the user’s identity using one set of credentials.
• Access Granted: Once authenticated, the user gains access to all associated applications without needing to log in again.
  
  

Implementing SSO in Force.com

In Salesforce’s Force.com platform, SSO can be implemented using two primary methods: Delegated Authentication and Federated Authentication. Each method offers different capabilities depending on the business’s security and integration needs.

1. Delegated Authentication:

Delegated authentication SSO integrates Salesforce with an external authentication system that you manage. This method allows organizations to authenticate users through systems like LDAP (Lightweight Directory Access Protocol) or a token-based system, instead of relying on Salesforce’s native password management.

With delegated authentication, you manage permissions at a more granular level. This means you can selectively require certain users to authenticate via your external system, while others can still use Salesforce’s password-based authentication.

2. Federated Authentication Using SAML:

Federated authentication leverages the Security Assertion Markup Language (SAML) protocol, enabling authentication and authorization data to be transferred between unrelated services. Essentially, SAML allows you to log in to Salesforce from a client app, providing seamless access without needing to enter separate credentials for Salesforce.

Unlike delegated authentication, federated authentication doesn’t require manual permission management. Salesforce automatically enables federated authentication for your organization, making it a more straightforward and widely adopted SSO method.

Configure SSO Across Multiple Salesforce Orgs

Let your users log in across multiple Salesforce orgs using single sign-on (SSO) credentials. With SSO, you can validate user credentials against a corporate database or other app rather than managing separate passwords for each Salesforce org.
Enterprises often deploy more than one Salesforce org. Unless you implement SSO, users that access different orgs must reauthenticate with each org. Removing this extra login step makes it more convenient for users and enhances security because it’s easier for users to maintain and use a single, strong password.
SSO follows a hub-and-spoke architecture. At the center is a centralized authentication hub, the identity provider. The identity provider validates credentials and asserts the user’s identity to the spokes—Salesforce orgs that are the service providers. The org that is the identity provider generates SAML assertions that follow the SAML 2.0 standard for SSO.

Benefits of SSO 

Implementing SSO brings several advantages to your org.

• Reduced administrative costs—With SSO, users memorize a single password to access network resources and external apps and Salesforce. When accessing Salesforce from inside the corporate network, users log in seamlessly and aren’t prompted for a username or password. When accessing Salesforce from outside the corporate network, the users’ corporate network login works to log them in. With fewer passwords to manage, system admins receive fewer requests to reset forgotten passwords.
• Leverage existing investment—Many companies use a central LDAP database to manage user identities. You can delegate Salesforce authentication to this system. Then when users are removed from the LDAP system, they can no longer access Salesforce. Users who leave the company automatically lose access to company data after their departure.
• Time savings—On average, users take 5–20 seconds to log in to an online app. It can take longer if they mistype their username or password and are prompted to reenter them. With SSO in place, manually logging in to Salesforce is avoided. These saved seconds reduce frustration and add up to increased productivity.
• Increased user adoption—Due to the convenience of not having to log in, users are more likely to use Salesforce regularly. For example, users can send email messages that contain links to information in Salesforce, such as records and reports. When the recipient of the email message clicks the links, the corresponding Salesforce page opens.
• Increased security—All password policies that you’ve established for your corporate network are in effect for Salesforce. Sending an authentication credential that’s only valid for a single time also increases security for users who have access to sensitive data.
  
  

Viewing Single Sign-On Login Errors

If your organization is enabled for Single Sign-On using delegated authentication and has built a Single Sign-On solution, you can view the most recent Single Sign-On login errors for your organization.

• From Setup, enter Delegated Authentication Error History in the Quick Find box, then select Delegated Authentication Error History.
• For the twenty-one most recent login errors, you can view the user’s username, login time, and the error.
  
  
  

Summary

Single Sign-On (SSO) provides a robust solution for enhancing both user experience and security within Salesforce environments. By enabling users to access multiple systems with one set of credentials, SSO eliminates the friction caused by repeated logins while ensuring consistent access control across your organization’s technology stack.