SAP Process Integration and Process Orchestration are earlier-generation on-premise integration platforms used for message routing, mapping and business process integration. Existing interfaces require support and a planned migration path.
A PI/PO interface does not necessarily migrate unchanged to Integration Suite; adapters, mappings and monitoring need redesign.
A practical SAP PI/PO engagement begins with an inventory of the installed product and release, affected business processes, connected systems and decision-makers. From there, the team can define scope, data and integration requirements, testing responsibilities and a realistic transition or support plan. This is legacy expertise: confirm current SAP maintenance and product availability against your own contract and roadmap.