Enterprise Integration Modernization with SAP BTP

Abstract

Hybrid and multi cloud adoption has made enterprise integration a strategic architecture problem rather than a narrow middleware concern. Large organizations frequently operate SAP S4HANA, SAP ECC, SaaS business applications, partner portals, data lakes, and hyper scaler services across heterogeneous environments. Point-to-point interfaces and legacy enterprise service bus patterns often create tight coupling, duplicated mappings, weak observability, and security gaps. This paper proposes a Hybrid Multi Cloud Integration Modernization Framework, abbreviated as HMC-IMF, for SAP Business Technology Platform centered enterprise integration modernization. The framework combines SAP Integration Suite, API management, event driven integration, clean core extensions, runtime placement, security governance, and observability into a unified modernization model. A synthetic enterprise integration dataset is defined with 186 applications, 2,850 interfaces, 1,120 APIs, 740 event topics, 320 batch flows, five cloud environments, and 24 months of operational logs. Experimental analysis compares a legacy point-to-point baseline with the proposed BTP centered architecture. Results show a 38 percent reduction in interface complexity, a decrease in average integration latency from 420 MS to 245 MS, a reduction in mean time to recovery from 155 minutes to 54 minutes, and a decline in failed message rate from 3.8 percent to 1.1 percent. The findings suggest that SAP BTP can serve as a governed integration modernization layer when paired with explicit pattern selection, policy controls, and operational telemetry. Index Terms SAP BTP, enterprise integration, hybrid cloud, multi-cloud architecture, SAP Integration Suite, API management, event-driven architecture, clean core