You need to integrate the headquarters of a company running on SAP S/4 HANA with...

SAP Cloud Integration Automation Service and SAP Cloud Connector are two integration technologies that can be used in a 2-tier ERP scenario, where the headquarters of a company runs on SAP S/4 HANA and a subsidiary runs on SAP S/4 HANA Cloud. SAP Cloud Integration Automation Service is a cloud-based service that automates the integration of SAP S/4 HANA Cloud with other SAP solutions, such as SAP SuccessFactors, SAP Ariba, or SAP S/4 HANA on-premise. SAP Cloud Connector is a cloud-based service that establishes a secure connection between SAP S/4 HANA Cloud and on-premise systems, such as SAP Process Orchestration or third-party systems. Reference: SAP Blogs - Two-Tier ERP for SAP S/4HANA Cloud