This blog post is about the first steps to set-up and enable the SAP NetWeaver Event-Enablement Add-on, a new component from SAP for SAP Cloud Platform Enterprise Messaging connectivity.

Add-on to SAP NetWeaver ABAP systems, operates within the established SAP infrastructure of the underlying system in all aspects (application management, security, logging Allows to enhance or create custom content (extractors, formatters) and connectors Uses highly scalable techniques to bring customer data and events into the cloud event based triggers delta loads / change pointers parallel data processing (in multiple SAP work processes) data splitting BAPI calls for data selection are possible Supports outbound AND inbound data flows Supports interface clustering for efficient provisioning to multiple cloud applications

Make sure you have signed-up and you can access your SAP Cloud Platform instance Activate the "Enterprise Messaging" Service

If you have an active subscription of the Enterprise Messaging service, you should be able to download the Add-on component from the Software Center at: https://launchpad.support.sap.com/#/products/73554900100900005152 Install the Add-on. Installation and Set-Up Documentation can be found at: https://help.sap.com/viewer/e966e6c0e61443ebaa0270a4bae4b363/1.0/enUS/3eba827c531344eb879d8e35022d90ba.html

We will define connection between SAP Cloud Platform and SAP ERP This is a one time action, required per cloud (e.g. EU10, EU20, ..) and per subaccount For convenience, copy the service key from your Enterprise Messaging instance into e.g. a notepad for easier copy and paste. This connection is using REST, not e.g. AMQP or MQTT.

Create RFC Connection with connection type ‘G’ pointing, to the URI from the service key (from the httprest section) Enter the URI without the ‘https://’, like "enterprise-messaging-pubsub.cfapps.eu10.hana.ondemand.com" This is the connection towards the data center, e.g. EU10 Save

SM59 Settings (Example)

Create a second RFC Connection ‘G’, pointing to the "tokenendpoint " from the Subaccount Enter ‘/ oauth /token’ in second line (Path Prefix) In ‘Logon and Security’ –> ‘Security option’, select ‘active’ and ‘Anonym ssl client (Anonym)’ Make sure certificates were exchanged earlier (other ppt with more details on SSL Trust settings / certificates exchange available)

SM59 – OAuth Settings (Example)

Create a connection instance and point it to the SAP Cloud Platform instance Enter RFC destination for main service

ACI Configuration for Connection Setup

Enter Client ID (SAP_EM_CLIENT_ID) from Service Key Enter RFC destination for OAuth you created earlier (SAP_EM_TOKEN_DESTINATION)

File Transfer Instance Configuration

Please note: Also return codes other to 200 could mean ‘success’

Map webservice error codes

Enter password from Service key ‘clientsecret" into the secure data store

Set cloud connection password

Congratulations! You have set-up the connectivity of the Add-on.

–> Part 2 will guide you through configuration of an actual Enterprise Messaging use-case, based on an SAP business object even. Please find it at https://blogs.sap.com/2020/10/08/sap-enterprise-messaging-for-sap-erp-howto-guide-part-2-first-use-case/

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