Google Workspace SSO

This guide walks you through setting up SAML Single Sign-On between Google Workspace (formerly G Suite) and Probo.

Prerequisites

• Google Workspace administrator access
• Probo organization administrator access
• Your Probo domain (e.g., probo.example.com)
• Access to your DNS settings for domain verification

Prepare Probo Information

Before configuring Google Workspace, gather these Probo service provider details:

Field	Value
ACS URL	https://your-probo-domain.com/auth/saml/acs
Entity ID	https://your-probo-domain.com/auth/saml/metadata
Start URL	https://your-probo-domain.com (optional)

Replace your-probo-domain.com with your actual Probo domain.

Domain Verification

Before configuring anything else, you must verify domain ownership:

1. Log in to Probo as an organization administrator
2. Go to Organization Settings → Authentication → SAML
3. Click Verify Domain (if no configurations exist yet, this option will be available)
4. Copy the provided TXT record value
5. Add a TXT record to your domain’s DNS settings:

   Type: TXT
   Name: _probo-domain-verification.your-company.com
   Value: [Verification token from Probo]
   TTL: 300 (or your DNS provider's default)

6. Wait for DNS propagation (usually 5-15 minutes)
7. In Probo, click Complete Verification
8. If successful, the domain status will show as “Verified”

Configure Google Workspace

1. Sign in to the Google Admin Console

2. Go to Apps → Web and mobile apps

3. Click Add app → Add custom SAML app

4. Configure the app details:

   Field	Value
   App name	Probo
   Description	Probo Compliance Management Platform
   Upload logo	Download from GitHub (optional)

5. Click Continue

6. Save the Google Identity Provider details that appear (you’ll need these for Probo configuration):

   Field	Example Value	Notes
   SSO URL	https://accounts.google.com/o/saml2/idp?idpid=XXXXXXXXX	Copy this exact URL
   Entity ID	https://accounts.google.com/o/saml2?idpid=XXXXXXXXX	Copy this exact URL
   Certificate	X.509 Certificate text	Download the certificate or copy the X.509 certificate text

7. Click Continue

8. Configure the service provider details:

   Field	Value
   ACS URL	https://your-probo-domain.com/connect/saml/consume
   Entity ID	https://your-probo-domain.com/connect/saml/metadata
   Start URL	[SAML Configuration ID] (optional - see note below)
   Name ID format	EMAIL
   Name ID	Basic Information > Primary email

   Important: The Start URL is optional but if you want to support IdP-initiated login flows, it MUST be set to your exact SAML configuration ID (not a placeholder). If set incorrectly, SSO will not work. You’ll get this ID after creating the SAML configuration in Probo.

9. Click Continue

10. Configure the attribute mappings:

    Google Directory attributes	App attributes
    Basic Information > Primary email	email
    Basic Information > First name	firstName
    Basic Information > Last name	lastName

11. Click Finish

12. In the app list, click on your Probo app

13. Click User access

14. Select ON for everyone or configure specific organizational units

15. Click Save

Configure Probo

1. Log in to Probo as an organization administrator

2. Go to Organization Settings → Authentication → SAML

3. Click Add SAML Configuration

4. Configure the basic settings:

   Field	Value	Notes
   Email Domain	your-company.com	Your organization’s email domain
   Enforcement Policy	OPTIONAL	Recommended for initial setup

5. Configure the Identity Provider settings with values from Google Workspace:

   Field	Value	Notes
   IdP Entity ID	https://accounts.google.com/o/saml2?idpid=XXXXXXXXX	Copy from Google Workspace setup
   IdP SSO URL	https://accounts.google.com/o/saml2/idp?idpid=XXXXXXXXX	Copy from Google Workspace setup
   IdP Certificate	[X.509 Certificate text]	Paste the certificate from Google

6. Configure the attribute mappings:

   Field	Value	Notes
   Email Attribute	email	Maps to user email
   First Name Attribute	firstName	Maps to user first name
   Last Name Attribute	lastName	Maps to user last name
   Role Attribute	[Leave empty]	Unless you’ve configured custom attributes

7. Configure user settings:

   Field	Value	Notes
   Auto Signup	Enabled	Allows new users to sign up automatically via SSO

8. Click Save Configuration (the configuration will be created but not yet enabled)

9. Copy the SAML Configuration ID - you’ll see a unique configuration ID (e.g., saml_config_1a2b3c4d) that you’ll need for updating the Start URL in Google Workspace

Update Google Workspace Start URL

Now that you have the SAML configuration ID from Probo:

1. Return to Google Admin Console
2. Go to Apps → Web and mobile apps → Probo
3. Click SAML attribute mapping
4. Update the Start URL field with your SAML configuration ID (e.g., saml_config_1a2b3c4d)
5. Click Save

This enables IdP-initiated login flows, allowing users to click on Probo from their Google Workspace app launcher.

Troubleshooting

”App isn’t verified” Error

• Cause: Google Workspace app not enabled for users
• Solution: Enable the app for all users or specific organizational units in Google Admin Console

”Access blocked” Error

• Cause: User not in allowed organizational units
• Solution: Check Google Workspace user access settings and ensure users are in the correct organizational units

”Invalid SAML Response” Error

• Cause: Incorrect ACS URL or Entity ID configuration
• Solution: Verify URLs match exactly between Google Workspace and Probo:
  • ACS URL: https://your-probo-domain.com/connect/saml/consume
  • Entity ID: https://your-probo-domain.com/connect/saml/metadata

Attributes Not Mapping

• Cause: Incorrect attribute names in Probo configuration
• Solution: Use exact attribute names: email, firstName, lastName

Debugging Steps

Check Google Workspace Logs

1. Go to Google Admin Console → Reporting → Audit and investigation → SAML apps
2. Look for failed authentication attempts
3. Check error messages and timestamps for debugging clues

Verify Certificate Format

Ensure the certificate is properly formatted without line breaks:

-----BEGIN CERTIFICATE-----
[Certificate content without line breaks]
-----END CERTIFICATE-----

Test Metadata URL

If using metadata URL, test it in a browser to ensure it returns valid XML:

https://accounts.google.com/o/saml2/idp?idpid=XXXXXXXXX

Should return valid XML metadata response.

Advanced Configuration

Custom Attributes

To map additional Google Workspace attributes:

1. In Google Admin Console, go to Directory → Users
2. Add custom attributes to user profiles
3. In Probo SAML configuration, map these custom attributes

Multiple Domains

To support multiple email domains:

1. Create separate SAML configurations for each domain
2. Use the same Google Workspace IdP settings
3. Verify each domain separately

Organizational Units

Restrict SSO to specific organizational units in Google Workspace:

1. In the Probo app settings, select Limited access
2. Choose specific organizational units
3. Only users in those units will be able to use SSO