This blog describes how to execute SAP C4C/BYD OData services using client certificate when testing custom/standard OData services in the Postman.
As in the custom/standard OData service, you can use the business user and technical user basic authentication in the Postman. In addition, you can use the SSL certificate-based authentication in postman.
SCENARIO: Testing SAP C4C/BYD OData service using client certificate-based authentication in Postman.