Tutorial: Azure Active Directory Single sign-on (SSO) integration with SAP NetWeaver

In this tutorial, you'll learn how to integrate SAP NetWeaver with Azure Active Directory (Azure AD). When you integrate SAP NetWeaver with Azure AD, you can:

  • Control in Azure AD who has access to SAP NetWeaver.
  • Enable your users to be automatically signed-in to SAP NetWeaver with their Azure AD accounts.
  • Manage your accounts in one central location - the Azure portal.

To learn more about SaaS app integration with Azure AD, see What is application access and single sign-on with Azure Active Directory.

Prerequisites

To get started, you need the following items:

  • An Azure AD subscription. If you don't have a subscription, you can get a free account.
  • SAP NetWeaver single sign-on (SSO) enabled subscription.
  • SAP NetWeaver V7.20 required atleast

Scenario description

SAP NetWeaver supports both SAML (SP initiated SSO) and OAuth. In this tutorial, you configure and test Azure AD SSO in a test environment.

Note

Configure the application either in SAML or in OAuth as per your organizational requirement.

To configure the integration of SAP NetWeaver into Azure AD, you need to add SAP NetWeaver from the gallery to your list of managed SaaS apps.

  1. Sign in to the Azure portal using either a work or school account, or a personal Microsoft account.
  2. On the left navigation pane, select the Azure Active Directory service.
  3. Navigate to Enterprise Applications and then select All Applications.
  4. To add new application, select New application.
  5. In the Add from the gallery section, type SAP NetWeaver in the search box.
  6. Select SAP NetWeaver from results panel and then add the app. Wait a few seconds while the app is added to your tenant.

Configure and test Azure AD single sign-on for SAP NetWeaver

Configure and test Azure AD SSO with SAP NetWeaver using a test user called B.Simon. For SSO to work, you need to establish a link relationship between an Azure AD user and the related user in SAP NetWeaver.

To configure and test Azure AD SSO with SAP NetWeaver, complete the following building blocks:

  1. Configure Azure AD SSO to enable your users to use this feature.
    1. Create an Azure AD test user to test Azure AD single sign-on with B.Simon.
    2. Assign the Azure AD test user to enable B.Simon to use Azure AD single sign-on.
  2. Configure SAP NetWeaver using SAML to configure the SSO settings on application side.
    1. Create SAP NetWeaver test user to have a counterpart of B.Simon in SAP NetWeaver that is linked to the Azure AD representation of user.
  3. Test SSO to verify whether the configuration works.
  4. Configure SAP NetWeaver for OAuth​ to configure the OAuth settings on application side.

Configure Azure AD SSO

In this section, you enable Azure AD single sign-on in the Azure portal.

To configure Azure AD single sign-on with SAP NetWeaver, perform the following steps:

  1. Open a new web browser window and sign into your SAP NetWeaver company site as an administrator

  2. Make sure that http and https services are active and appropriate ports are assigned in SMICM T-Code.

  3. Sign on to business client of SAP System (T01), where SSO is required and activate HTTP Security session Management.

    a. Go to Transaction code SICF_SESSIONS. It displays all relevant profile parameters with current values. They look like below:-

     login/create_sso2_ticket = 2
     login/accept_sso2_ticket = 1
     login/ticketcache_entries_max = 1000
     login/ticketcache_off = 0  login/ticket_only_by_https = 0 
     icf/set_HTTPonly_flag_on_cookies = 3
     icf/user_recheck = 0  http/security_session_timeout = 1800
     http/security_context_cache_size = 2500
     rdisp/plugin_auto_logout = 1800
     rdisp/autothtime = 60
    

    Note

    Adjust above parameters as per your organization requirements, Above parameters are given here as indication only.

    b. If necessary adjust parameters, in the instance/default profile of SAP system and restart SAP system.

    c. Double-click on relevant client to enable HTTP security session.

    The Certificate download link

    d. Activate below SICF services:

     /sap/public/bc/sec/saml2
     /sap/public/bc/sec/cdc_ext_service
     /sap/bc/webdynpro/sap/saml2
     /sap/bc/webdynpro/sap/sec_diag_tool (This is only to enable / disable trace)
    
  4. Go to Transaction code SAML2 in business client of SAP system [T01/122]. It will open a user interface in a browser. In this example, we assumed 122 as SAP business client.

    The Certificate download link

  5. Provide your username and password to enter in user interface and click Edit.

    The Certificate download link

  6. Replace Provider Name from T01122 to http://T01122 and click on Save.

    Note

    By default provider name come as <sid><client> format but Azure AD expects name in the format of <protocol>://<name>, recommending to maintain provider name as https://<sid><client> to allow multiple SAP NetWeaver ABAP engines to configure in Azure AD.

    The Certificate download link

  7. Generating Service Provider Metadata:- Once we are done with configuring the Local Provider and Trusted Providers settings on SAML 2.0 User Interface, the next step would be to generate the service provider’s metadata file (which would contain all the settings, authentication contexts and other configurations in SAP). Once this file is generated we need to upload this in Azure AD.

    The Certificate download link

    a. Go to Local Provider tab.

    b. Click on Metadata.

    c. Save the generated Metadata XML file on your computer and upload it in Basic SAML Configuration section to autopopulate the Identifier and Reply URL values in Azure portal.

Follow these steps to enable Azure AD SSO in the Azure portal.

  1. In the Azure portal, on the SAP NetWeaver application integration page, find the Manage section and select Single sign-on.

  2. On the Select a Single sign-on method page, select SAML.

  3. On the Set up Single Sign-On with SAML page, click the edit/pen icon for Basic SAML Configuration to edit the settings.

    Edit Basic SAML Configuration

  4. On the Basic SAML Configuration section, if you wish to configure the application in IDP initiated mode, perform the following step:

    a. Click Upload metadata file to upload the Service Provider metadata file, which you have obtained earlier.

    b. Click on folder logo to select the metadata file and click Upload.

    c. After the metadata file is successfully uploaded, the Identifier and Reply URL values get auto populated in Basic SAML Configuration section textbox as shown below:

    d. In the Sign-on URL text box, type a URL using the following pattern: https://<your company instance of SAP NetWeaver>

    Note

    We have seen few customers reporting an error of incorrect Reply URL configured for their instance. If you receive any such error, you can use following PowerShell script as a work around to set the correct Reply URL for your instance.:

    Set-AzureADServicePrincipal -ObjectId $ServicePrincipalObjectId -ReplyUrls "<Your Correct Reply URL(s)>"
    

    ServicePrincipal Object ID is to be set by yourself first or you can pass that also here.

  5. SAP NetWeaver application expects the SAML assertions in a specific format, which requires you to add custom attribute mappings to your SAML token attributes configuration. The following screenshot shows the list of default attributes. Click Edit icon to open User Attributes dialog.

    image

  6. In the User Claims section on the User Attributes dialog, configure SAML token attribute as shown in the image above and perform the following steps:

    a. Click Edit icon to open the Manage user claims dialog.

    image

    image

    b. From the Transformation list, select ExtractMailPrefix().

    c. From the Parameter 1 list, select user.userprincipalname.

    d. Click Save.

  7. On the Set up Single Sign-On with SAML page, in the SAML Signing Certificate section, find Federation Metadata XML and select Download to download the certificate and save it on your computer.

    The Certificate download link

  8. On the Set up SAP NetWeaver section, copy the appropriate URL(s) based on your requirement.

    Copy configuration URLs

Create an Azure AD test user

In this section, you'll create a test user in the Azure portal called B.Simon.

  1. From the left pane in the Azure portal, select Azure Active Directory, select Users, and then select All users.
  2. Select New user at the top of the screen.
  3. In the User properties, follow these steps:
    1. In the Name field, enter B.Simon.
    2. In the User name field, enter the username@companydomain.extension. For example, B.Simon@contoso.com.
    3. Select the Show password check box, and then write down the value that's displayed in the Password box.
    4. Click Create.

Assign the Azure AD test user

In this section, you'll enable B.Simon to use Azure single sign-on by granting access to SAP NetWeaver.

  1. In the Azure portal, select Enterprise Applications, and then select All applications.

  2. In the applications list, select SAP NetWeaver.

  3. In the app's overview page, find the Manage section and select Users and groups.

    The "Users and groups" link

  4. Select Add user, then select Users and groups in the Add Assignment dialog.

    The Add User link

  5. In the Users and groups dialog, select B.Simon from the Users list, then click the Select button at the bottom of the screen.

  6. If you're expecting any role value in the SAML assertion, in the Select Role dialog, select the appropriate role for the user from the list and then click the Select button at the bottom of the screen.

  7. In the Add Assignment dialog, click the Assign button.

Configure SAP NetWeaver using SAML

  1. Sign in to SAP system and go to transaction code SAML2. It opens new browser window with SAML configuration screen.

  2. For configuring End points for trusted Identity provider (Azure AD) go to Trusted Providers tab.

    Configure Single Sign-On

  3. Press Add and select Upload Metadata File from the context menu.

    Configure Single Sign-On

  4. Upload metadata file, which you have downloaded from the Azure portal.

    Configure Single Sign-On

  5. In the next screen type the Alias name. For example, aadsts and press Next to continue.

    Configure Single Sign-On

  6. Make sure that your Digest Algorithm should be SHA-256 and don’t require any changes and press Next.

    Configure Single Sign-On

  7. On Single Sign-On Endpoints, use HTTP POST and click Next to continue.

    Configure Single Sign-On

  8. On Single Logout Endpoints select HTTPRedirect and click Next to continue.

    Configure Single Sign-On

  9. On Artifact Endpoints, press Next to continue.

    Configure Single Sign-On

  10. On Authentication Requirements, click Finish.

    Configure Single Sign-On

  11. Go to tab Trusted Provider > Identity Federation (from bottom of the screen). Click Edit.

    Configure Single Sign-On

  12. Click Add under the Identity Federation tab (bottom window).

    Configure Single Sign-On

  13. From the pop-up window, select Unspecified from the Supported NameID formats and click OK.

    Configure Single Sign-On

  14. Note that user ID Source and user ID mapping mode values determine the link between SAP user and Azure AD claim.

    Scenario: SAP User to Azure AD user mapping.

    a. NameID details screenshot from SAP.

    Configure Single Sign-On

    b. Screenshot mentioning Required claims from Azure AD.

    Configure Single Sign-On

    Scenario: Select SAP user ID based on configured email address in SU01. In this case email ID should be configured in su01 for each user who requires SSO.

    a. NameID details screenshot from SAP.

    Configure Single Sign-On

    b. screenshot mentioning Required claims from Azure AD.

    Configure Single Sign-On

  15. Click Save and then click Enable to enable identity provider.

    Configure Single Sign-On

  16. Click OK once prompted.

    Configure Single Sign-On

    Create SAP NetWeaver test user

    In this section, you create a user called B.simon in SAP NetWeaver. Please work your in house SAP expert team or work with your organization SAP partner to add the users in the SAP NetWeaver platform.

Test SSO

  1. Once the identity provider Azure AD was activated, try accessing below URL to check SSO (there will no prompt for username & password)

    https://<sapurl>/sap/bc/bsp/sap/it00/default.htm

    (or) use the URL below

    https://<sapurl>/sap/bc/bsp/sap/it00/default.htm

    Note

    Replace sapurl with actual SAP hostname.

  2. The above URL should take you to below mentioned screen. If you are able to reach up to the below page, Azure AD SSO setup is successfully done.

    Configure Single Sign-On

  3. If username & password prompt occurs, please diagnose the issue by enable the trace using below URL

    https://<sapurl>/sap/bc/webdynpro/sap/sec_diag_tool?sap-client=122&sap-language=EN#

Configure SAP NetWeaver for OAuth

  1. SAP Documented process is available at the location: NetWeaver Gateway Service Enabling and OAuth 2.0 Scope Creation

  2. Go to SPRO and find Activate and Maintain services.

    Configure Single Sign-On

  3. In this example we want to connect the OData service: DAAG_MNGGRP with OAuth to Azure AD SSO. Use the technical service name search for the service DAAG_MNGGRP and activate if not yet active, already (look for green status under ICF nodes tab). Ensure if system alias (the connected backend system, where the service actually running) is correct.

    Configure Single Sign-On

    • Then click pushbutton OAuth on the top button bar and assign scope (keep default name as offered).
  4. For our example the scope is DAAG_MNGGRP_001, it is generated from the service name by automatically adding a number. Report /IWFND/R_OAUTH_SCOPES can be used to change name of scope or create manually.

    Configure Single Sign-On

    Note

    Message soft state status is not supported – can be ignored, as no problem. For more details, refer here

Create a service user for the OAuth 2.0 Client

  1. OAuth2 uses a service ID to get the access token for the end-user on its behalf. Important restriction by OAuth design: the OAuth 2.0 Client ID must be identical with the username the OAuth 2.0 client uses for login when requesting an Access Token. Therefore, for our example, we are going to register an OAuth 2.0 client with name CLIENT1, and as a prerequisite a user with the same name (CLIENT1) must exist in the SAP system and that user we will configure to be used by the referred application.

  2. When registering an OAuth Client we use the SAML Bearer Grant type.

    Note

    For more details, refer OAuth 2.0 Client Registration for the SAML Bearer Grant Type here

  3. tcod: SU01 / create user CLIENT1 as System type and assign password, save it as need to provide the credential to the API programmer, who should burn it with the username to the calling code. No profile or role should be assigned.

Register the new OAuth 2.0 Client ID with the creation wizard

  1. To register a new OAuth 2.0 client start transaction SOAUTH2. The transaction will display an overview about the OAuth 2.0 clients that were already registered. Choose Create to start the wizard for the new OAuth client named as CLIENT1in this example.

  2. Go to T-Code: SOAUTH2 and Provide the description then click next.

    Configure Single Sign-On

    Configure Single Sign-On

  3. Select the already added SAML2 IdP – Azure AD from the dropdown list and save.

    Configure Single Sign-On

    Configure Single Sign-On

    Configure Single Sign-On

  4. Click on Add under scope assignment to add the previously created scope: DAAG_MNGGRP_001

    Configure Single Sign-On

    Configure Single Sign-On

  5. Click finish.

Additional resources