Adding a Property for the Generated Key
Services must provide a unique key that can be used by the client to retrieve a specified entity after receiving a list of entities, in order to conform to the OData standard. Analytical services must provide a dedicated key since the natural keys of the business entity are not usable in aggregated results.
Context
In transaction SEGW, add a property for the unique identifier of the returning results. The name of the property can be freely chosen. The type of the property must be Edm.String and this property needs to carry the ABAP field name ‘GENERATED_ID’.
