Configure Outbound SAML OAuth between SAP S/4HANA Cloud, public edition and SAP BTP

1. Log on to the SAP S/4HANA Cloud, public edition and search for the Communication Arrangements app.

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2. Choose New.

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3. Select the communication scenario SAP_COM_0190.

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4. Enter a name as Z_TEST_SAP_COM_0190 for the arrangement in Arrangement Name and choose Create.

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Results: Communication Arrangement has been created, and you’re directed to the communication arrangement page to configure further settings. Stay on the same page and proceed to the next step.

1. In the Communication Arrangement page that you created in the previous step, choose New and create a New Communication System.

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2. Enter the System ID as Z_TEST_SAP_COM_0190 and choose Create.

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3. Upon creating the communication system, stay at the same page and navigate to the Technical Data > General.

   You have already copied the service key from your SAP BTP Subaccount, in the generated service key. Your ecmservice URL would look like this https://api-xyz-gh-gw.cfapps.sap.hana.ondemand.com. Ensure that you copy the URL without the prefix https://.

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   Paste it in the Host Name.

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4. Enter the Authorization and Token Endpoints under OAuth 2.0 Settings.

   To enter Authorization Endpoint, copy the authentication URL listed under uaa of your service key. Delete https:// from the URL and add /oauth/ authorize as suffix to the URL. For example, <subaccountname>.authentication.sap.hana.ondemand.com/oauth/authorize.

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5. Enter Token Endpoint, This is the URL that you copied while establishing trust configuration between SAP S/4HANA Cloud, public edition and SAP BTP (You can check Step 4 in Trust Configuration between SAP S/4HANA Cloud, public edition and SAP BTP Subaccount).Ensure that you remove the prefix https:// before pasting it in the field.

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6. In the Audience field, copy the authentication URL with https:// listed under uaa of your service key. For example, https://<subaccountname>.authentication.sap.hana.ondemand.com. Check Step 2.5 in Create a Service Instance and then a Service Key of SAP Document Management Service, Integration Option.

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7. Scroll down to the section User for Outbound Communication and choose + Add (plus button) to create new outbound user.

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8. In the New Outbound User dialog, select OAuth 2.0 in Authentication Method field.

   Enter client ID that you copied from the service key in the OAuth 2.0 Client ID field. Enter clientsecret that you copied from the service key in the Client Secret field.

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   Choose Create.

9. Save the Communication System.

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1. In the Communication Arrangement you created, in the Additional Properties section, maintain the following details:

   Property Name	Property Value
   File Share ID	ZTEST
   File Share Type	2
   Repository ID	MyTutONBRepo. Ensure that you’ve added the externalID as repo ID that you onboarded while executing the tutorial Create a Repository Using the Onboarding API for Google Drive. Refer to the Step2.4.
   Description	For tutorial purposes

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2. In Outbound Services section, maintain the following details:

   Field Name	Value
   Path	/browser
   Port	443

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3. Choose Save.