This blog explains how Business Partner master data can be maintained in a SAP S/4 HANA Cloud system using OData APIs. OData APIs allow the creation and consumption of queryable and interoperable REST methodologies in a simple and standard way. These API's offer light-weight connection option for data transfer with SAP S/4HANA systems.The OData service API_BUSINESS_PARTNER is available on SAP API Business Hub, it can be used to maintain master data related to Business Partner, Customer and Supplier entities.
A Communication User for SAP communication Scenario: SAP_COM_0008 (Business Partner, Customer and Supplier Integration). Please refer the document on how to create Communication User and Arrangements.
HTTP response 204 No Content, indicates successful delete.
The above illustrated examples are very simple, same steps can be followed for other entities and attributes in the service. Extensibility is supported in this service. Please refer to my previous blog Add Custom fields to SAP S/4HANA Business Partner OData API Entities for further details. Looking forward to your questions and feedback in the comments section.