SAP Process Integration (SAP PI) and SAP Process Orchestration (SAP PO) are middleware solutions from SAP that provide a platform for the integration of SAP and non-SAP systems. They enable the exchange of information and data between different systems and applications within an organization, as well as between different organizations.

SAP PI was originally introduced as a product for the integration of SAP systems, but has evolved over time to support a wider range of integration scenarios, including the integration of non-SAP systems.

SAP PO is the successor to SAP PI, and is designed to provide a more comprehensive and unified platform for process integration and orchestration. It offers improved performance, scalability, and ease of use compared to SAP PI. SAP PO also includes features for process automation and monitoring, which makes it a suitable solution for both simple and complex integration scenarios.

Overall, SAP PI/PO provides a robust and flexible platform for organizations to integrate their systems and streamline their business processes.