In an embedded deployment of SAP S/4HANA, Object Pages utilize the OData protocol (A) to access and interact with the SAP S/4HANA system. OData (Open Data Protocol) is an open protocol that allows the creation and consumption of queryable and interoperable RESTful APIs in a simple and standard way. It is extensively used in SAP Fiori applications for seamless communication between the SAP Fiori front-end and the SAP S/4HANA back-end, enabling efficient data retrieval, updates, and other CRUD operations on the system data.