Maintain a Communication Arrangement for Inbound Communication

In case you want to expose developed ABAP services for technical communication, you are expected to bundle them into a Communication Scenario. This Communication Scenario can then be consumed as a whole by different Communication Systems, represented by Communication Users. The combination of a Scenario, a System and a User is represented by a Communication Arrangement.

1. Open Eclipse and do right click your system and navigate to Properties.

   

2. Navigate to ABAP Development and copy the System URL.

   

1. Navigate to Maintain Communication User.

   

2. Create a new user by clicking New.

   

1. Enter user name TEST_XXX, where XXX is your group number, and description for your user.

2. Use propose password button since the password has to be 20 characters and save the generated password in a text file for the following exercises.

3. Click Create.

   

1. Navigate back to Home and then to Communication System.

   

2. Create a new communication system by clicking New.

   

1. Add a system ID and system name.

   • System ID: WEBIDE_BASIC_XXX
   • System Name: WEBIDE_BASIC_XXX

2. Click Create.

A new communication system will be registered.

1. You can retrieve the system host name by right-clicking on your ABAP Cloud Project, selecting Properties from the context menu and clicking on ABAP Development in the hierarchy of properties. Copy the system URL and remove https:// at its beginning.

   

2. Click  + button to add the created communication user for inbound communication. Inbound communication means that the here defined system is used from a communication partner to call from external into the SAP S/4HANA system.

3. Click Save.

   

   

1. Navigate back to Home and then to Communication Arrangement.

   

2. Create a new communication arrangement by clicking New.

   

Select your communication scenario that you created in the last tutorial, Expose a Standard Core Data Service for ABAP Environment, and click Create.

1. Add your communication system and select the communication user which you created in the first step in this tutorial.

2. Copy this service URL / service interface from created communication arrangement, you will need it in next steps.

3. Click Save.

   The URL from the communication arrangement should look as followed:

   https://<your-system>.abap.eu10.hana.ondemand.com/sap/opu/odata/sap/Z_BIND_XXX (where XXX is your group number)

   

You can check your service URL via Postman. In Step 12 you’ll learn how to check your communication scenario via SAP BTP Cockpit.

1. Paste your service URL in a browser or in Postman.

2. Use the communication user and password.

3. Check if you can connect to the service and there is no error.

   

   

1. Logon to your SAP BTP Cockpit.

   

2. Select your global account.

![check scenario](https://raw.githubusercontent.com/sap-tutorials/abap-core-development/main/tutorials/abap-environment-communication-arrangement/global.png)

3. Select Subaccounts.

![check scenario](https://raw.githubusercontent.com/sap-tutorials/abap-core-development/main/tutorials/abap-environment-communication-arrangement/subaccounts.png)

4. Select your subaccount.

![check scenario](https://raw.githubusercontent.com/sap-tutorials/abap-core-development/main/tutorials/abap-environment-communication-arrangement/subaccount.png)

5. Select Service Instances and find your Instance and open it by clicking the arrow.

![check scenario](https://raw.githubusercontent.com/sap-tutorials/abap-core-development/main/tutorials/abap-environment-communication-arrangement/serviceInstances.png)

6. Click Actions to create Service Key.

![check scenario](https://raw.githubusercontent.com/sap-tutorials/abap-core-development/main/tutorials/abap-environment-communication-arrangement/actions.png)

7. Create Service key with the following parameters:
   • Name: ADT
   • Configuration Parameters (JSON):

```JSON
{
 "scenario_id":"Z_COMMU_XXX",
 "type":"basic"
 }
```

![check scenario](https://raw.githubusercontent.com/sap-tutorials/abap-core-development/main/tutorials/abap-environment-communication-arrangement/serviceKey.png)

8. Now, your new service key is listed under Service Keys. The successful creation of the service key proves the existence of the communication scenario.