OData Entity Expandables
The provided sources do not contain sufficient information to define the concept marked as "undefined." The sources cover SAP BTP entities such as TrustedSites, BusinessUsers, BusinessRoles, CommunicationUsers, and ClientCertificates, as well as a tutorial on OData extensibility, but none of these sources identify or explain a concept that maps to the label "undefined." A definition cannot be responsibly written without a clearly identified concept grounded in the provided source material.
Tutorials that teach this
Docs explaining this concept
Prerequisites
- Concept OData Entity Relationships and Associations An **EntitySet with Input Parameters** is an OData construct that allows developers to configure an entity set to accept input parameters when querying data. In SAP development, a developer uses it to pass specific values that filter or shape the data returned by the OData service at the entity set level. This is configured as part of an OData service definition, as described in [Configuring an EntitySet with Input Parameters](https://ui5.sap.com/#/topic/b40e5ae5cdd647c490bd03b9d5f98d56).
- Concept OData V2 Protocol The concept provided is `undefined`, and the supplied sources cover the [OData V4 Tutorial](https://ui5.sap.com/#/topic/bcdbde6911bd4fc68fd435cf8e306ed0) and the Fiori Reuse Library for Change Document Solution — neither of which defines a concept named `undefined`. There is insufficient information in the provided sources to write a grounded reference definition for this concept.