How to configure SAML single sign-on (SSO) in

. 3 min read

SAML-based single sign-on (SSO) gives members access to Otter through an identity provider (IDP) of your choice.

Otter supports
• Identity Provider (IdP) Initiated Flow
• Service Provider (SP) Initiated Flow
• Just-in-time (JIT) provisioning
• Assertion and NameID Encryption
• Session duration configured in your IdP

Who can use this feature
• Available to Otter for Enterprise plan (100 seats minimum) only
• Only the admin can configure SSO for the team. Once configured, SSO is available for use for every team member.

If your organization uses Okta as the identity provider, please read the setup guide here. Otherwise, please continue.

Before you start ...
Please contact your account manager to enable SSO before you proceeding to the following setup steps.

Step 1: Configure your identity provider

Before you start: know your Team Handle

On Team Settings page, choose "Settings & Security" tab, locate "SAML Authentication", and click "Configure". You can find your team handle at the top of the popup dialogue.

NOTE: Replace yourhandle in the following instructions with your team’s handle

Single Sign On URL

Also known as “SSO post-back URL”, “Assertion Consumer Service URL”, “ACS URL”

Entity ID

Also known as “Audience”


  • NameID: (required) the NameID must be unique, pseudo-random, and will not change for the user over time — like an employee ID number. The NameID Format must be “persistent”
  • email: (required) the user’s email address
    <saml2:Attribute Name="email" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">    
        <saml2:AttributeValue xsi:type="xs:string">        
  • first_name: (required) the user’s first name
    <saml2:Attribute Name="first_name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">    
        <saml2:AttributeValue xsi:type="xs:string">        
  • last_name: (required) the user’s last name
    <saml2:Attribute Name="last_name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">    
        <saml2:AttributeValue xsi:type="xs:string">        

Step 2: Set up SAML SSO for Otter

  1. Visit
  2. In Privacy & Security tab, find SAML Authentication. Click “Configure”.
  3. Enter your SAML Endpoint URL (this came from setting up your identity provider earlier.) This is where authentication requests from Otter will be sent.
  4. Enter your Identity Provider Issuer URL (also known as the IdP Entity ID).
  5. Copy the entire x.509 Public Certificate from your identity provider.
  6. (Optional) In advanced settings, you can choose to sign AnthNRequest. You can also choose to require SAML Assertion and NameID encryption. Make sure the configuration in your IdP matches the selections in Otter.
  7. To save changes, click “Save and Test”. A test authentication will be attempted to verify your configuration.
  8. You can enable SSO for your team once the above test passes. Upon enabling, SSO is optional, and other sign-in methods are still allowed. This is recommended during testing period to ensure your team members have an uninterrupted experience.
  9. When it's ready, remember to change to require SSO for all team members, so as to prevent members from using other sign-in methods.

If you encounter problems during the setup, please contact for help.