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Coupa (SP-initiated) Integration Guide


Use this guide to enable Multi-Factor Authentication and Single Sign-on (SSO) access via SAML to Coupa.


1. Have a Coupa account

2. Ensure that SAML SSO is enabled through an administrator account

Contact Coupa to enable SSO, and provide the Metadata File from the SecureAuth IdP Web Admin

3. Create a New Realm for the Coupa integration

4. Configure the following tabs in the Web Admin before configuring the Post Authentication tab:

  • Overview – the description of the realm and SMTP connections must be defined

  • Data – an enterprise directory must be integrated with SecureAuth IdP

  • Workflow – the way in which users will access this application must be defined

  • Multi-Factor Methods – the Multi-Factor Authentication methods that will be used to access this page (if any) must be defined

SecureAuth IdP Configuration Steps



1. In the Profile Fields section, map the directory field that contains the user's Coupa ID to the SecureAuth IdP Property

For example, add the Coupa ID Field to the Email 2 Property if it is not already contained somewhere else


Click Save once the configurations have been completed and before leaving the Data page to avoid losing changes

Post Authentication


2. Select SAML 2.0 (SP Initiated) Assertion Page from the Authenticated User Redirect dropdown in the Post Authentication tab in the Web Admin

3. An unalterable URL will be auto-populated in the Redirect To field, which will append to the domain name and realm number in the address bar (Authorized/SAML20SPInit.aspx)

4. A customized post authentication page can be uploaded, but it is not required

User ID Mapping


5. Select the SecureAuth IdP Property that corresponds to the directory field that contains the Coupa ID (Email 2)

6. Select urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified from the Name ID Format dropdown (default)

Select a different option if Coupa requires it, which the Service Provider (SP) will provide

7. Select False from the Encode to Base64 dropdown

SAML Assertion / WS Federation


8. Set the SAML Consumer URL to https://[company] and replace company with the appropriate domain

9. Set the WSFed/SAML Issuer to a Unique Name that will be shared with Coupa

The WSFed/SAML Issuer must match exactly on the SecureAuth IdP side and the Coupa side

10. Set the SAML Recipient to https://[company] and replace company with the appropriate domain

11. Set the SAML Audience to for production environments

Set the SAML Audience to for testing / staging environments

12. Provide the SP Start URL to enable SSO and to redirect users appropriately to access Coupa

For example, the SP Start URL would be https://[company ]

13. Set the SAML Offset Minutes to make up for time differences between devices

14. Set the SAML Valid Hours to limit for how long the SAML assertion is valid – this can be no more than 2 hours

15. Select True from the Sign SAML Assertion dropdown

16. Select False from the Sign SAML Message dropdown


No configuration is required for the WSFed Reply To/SAML Target URL, Append HTTPS to SAML Target URL, or Generate Unique Assertion ID fields


17. Leave the Signing Cert Serial Number as the default value, unless there is a third-party certificate being used for the SAML assertion

If using a third-party certificate, click Select Certificate and choose the appropriate certificate

18. Download the Assertion Signing Certificate, which will be used in the Coupa configuration steps

19. Provide the Domain in order to Download the Metadata File to send to Coupa

This will assist Coupa in enabling SSO


Click Save once the configurations have been completed and before leaving the Post Authentication page to avoid losing changes

Forms Auth / SSO Token

Optionally, in the Forms Auth / SSO Token section, click the View and Configure FormsAuth keys/SSO token link to configure the token/cookie settings and configure this realm for SSO.


Coupa Configuration Steps


1. Log into the Coupa admin console, and select Company Setup under Setup, and click Security Controls

2. Scroll down to the bottom, and check Log in using SAML

3. Set the Login page URL to the Fully Qualified Domain Name (FQDN) of the SecureAuth IdP appliance, followed by the SecureAuth IdP Coupa-integrated realm, e.g.

4. Set the Logout page URL and the Timeout URL to any web page to which end-users will be redirected upon logging out or when their session times out

5. Click Add Certificate and select the Assertion Signing Certificate from the SecureAuth IdP Web Admin (step 18)

6. Click Save