Intercom - SSO configuration

Valid redirect URIs 

Please note that this application has not been formally tested by Kelvin Zero Inc. It is provided solely as a reference guide. If you encounter any issues, kindly submit a ticket directly through the support desk.

This documentation provides a step-by-step guide to setting up Single Sign-On (SSO) for Intercom using MPAS. SSO simplifies user authentication by allowing access to multiple applications with a single set of credentials. This integration enhances security and improves user experience across your organization

To set up Multi-Pass with  Intercom, ensure you meet the following requirements:

-  Intercom admin rights

- MPAS Admin rights

- Make sure that all users intended to use SSO in Intercom are registered in your IdP and have the necessary permissions to access Intercom.

Important: Custom elements in URLs (like realm names) are case sensitive. Make sure to match the exact casing from your environment.

Intercom - SSO configuration

Step 1 - Configure Multi‑Pass (MPAS) as Identity Provider

Access the Dashboard

1. Open Multi-Pass Dashboard
   

1. Select your tenant
2. In the left-hand menu, click Integrations, then select Applications
3. Under Custom Integration, click SAML
   

Fill the SAML Integration Form Using Intercom Information

Field	Value
SP Entity ID / Audience / Client ID	https://app.intercom.com/saml/<SAML Name>
ACS / Assertion Consumer Service URL	https://app.intercom.com/saml/<SAML Name>/consume
NameID Policy Format	Email
Name	intercom
Description	SSO integration for Intercom

1. At the bottom of the form, download the X.509 certificate, it will be needed in Intercom.
   

1. Click Add Integration to create the app.
   

Adjust Advanced Settings in MPAS Console

1. On the left side, click on advanced console
   

1. Click on Client
   
2. Search for the client you just created, and make sure that all the fields are correctly completed
   

1. General Settings
   

Setting	Value
Client ID	https://app.intercom.com/saml/<SAML Name>
Name	intercom
Description	SSO integration
Always display in UI	ON

1. Access Settings
   

Setting	Value
Home URL	https://ca.auth.kzero.com/realms/<TENANT_NAME>/protocol/saml/clients/<APP_NAME>
Valid Redirect URIs	https://app.intercom.com/saml/<SAML Name>/consume
IDP-Initiated SSO URL name	<APP_NAME>

1. SAML Capabilities
   

Setting	Value
Name ID format	email
Force Name ID format	OFF
Force POST binding	ON
Include AuthnStatement	ON

1. Signature & Encryption
   

Setting	Value
Sign documents	OFF
Sign assertions	ON

Step 2 - Configure Intercom as Service Provider

Enable SAML SSO in Intercom

1. Sign in to your Intercom workspace
2. Go to Settings → Workspace → Security
3. Choose Require SAML SSO as authentication method
4. Note the SAML Name (grayed-out field)

Complete the SAML Configuration

Field	Value
Single Sign‑On URL	https://ca.auth.kzero.com/realms/<TENANT_NAME>/protocol/saml
X.509 Certificate	Paste PEM-formatted cert from MPAS
Allowed Domains	example.com, mycompany.org

1. Click Save. Verify domain ownership if required via DNS TXT record.
   

Enforce and Test SSO

• Activate Require SAML SSO in Intercom
• Visit the Intercom login page and enter your email
• It should redirect to the MPAS login page
• Upon successful login, access Intercom
  

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