What is the role of SAP Integration Suite in a BTP-based extension architecture?

SAP Integration Suite is BTP's dedicated integration platform — providing pre-built connectors, API management, and both synchronous (API-based) and asynchronous (event-based) integration patterns — serving as the connective tissue between S/4HANA, BTP extensions, other SAP products, and non-SAP systems.

flowchart TB
    A[S/4HANA] --> B[SAP Integration Suite]
    C[BTP Extension] --> B
    D[Third-party SaaS] --> B
    B --> E[Consistent integration governance across all connections]

Architecturally, centralizing integration through one platform component (rather than each extension building its own bespoke point-to-point connection) provides consistent governance, monitoring, and security policy enforcement across the whole integration landscape — avoiding the classical "spaghetti integration" anti-pattern where dozens of undocumented, ad hoc point-to-point connections accumulate over years with no central visibility.

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