Ever wondered if SAP NetWeaver gateway can connect to non SAP legacy systems.
Well, the answer is yes.
With OData Services Consumption and Integration (OSCI), SAP NetWeaver Gateway can now consume an external OData service and generate an SAP NetWeaver Gateway compliant OData Service. We need to create an RFC destination between the external system and Gateway server. Then, generate the NetWeaver Gateway Service for the external Odata service. Finally, we activate the service. Howerver, currently there are some constraints in this approach.
If there is no OData service from the Non-SAP backend, we need to define a Backend Operation proxy
(BOP) to consume the Web Service from the Non-SAP backend as discussed in the below link: