SAP PI/PO vs. SAP Integration Suite: Comparison for Decision-Makers

What the Decision Is Really About

SAP Process Integration and Process Orchestration are approaching a defined end of maintenance. The question is therefore rarely *whether* to switch integration platforms, but in what sequence, under which operating model, and with what degree of reuse.

Architecture

The classic middleware is a self-operated Java landscape requiring dedicated patch, certificate, and capacity management. SAP Integration Suite is a cloud service: runtime, updates, and scaling are managed by the vendor, shifting your responsibility toward design, governance, and flow monitoring.

Operational Overhead

• **PI/PO:** System maintenance, kernel and Java patches, housekeeping, sizing — plannable, but resource-intensive.
• **Integration Suite:** No platform operations; instead, ongoing monitoring of quotas, connectivity (Cloud Connector), and vendor release updates.

Licensing and Cost Implications

The transition shifts costs from infrastructure and internal operations toward consumption- or capacity-based models. Crucial for your business case: the migration itself is the largest single cost item, not the target operations.

Migration Implications

A robust business case requires three key figures: the number of interfaces actively used in production, the proportion of technically transferable mappings, and test coverage. Without this assessment, any estimate is a gamble.

Recommendation

Start with a four- to six-week assessment and a pilot flow for each integration pattern. The outcome will deliver effort estimates, sequencing, and an operating model in a format that reliably supports an investment decision.