SAP Process Integration/Process Orchestration (PI/PO) SOAP TO RFC Part-2.

SOAP to RFC is a standard SAP function module that exposes a function module as a web service via PI. The process involves the following steps:
Import the RFC: In ESR, import the remote function call (RFC).
Define a service interface: Define a service interface for SOAP, but don't define any data or message types. The goal is to expose the RFC's input and output parameters.
Use a receiver RFC adaptor: Use a receiver RFC adaptor and a sender SOAP adaptor to make a call using a web server or SOAP, then have PI call an SAP backend system as an RFC call.
Configure the RFC adaptor: Configure the RFC adaptor in a communication channel.
Establish a connection: Use sender and receiver agreements to establish a connection between the communication channel and the interface of the function module.
The sender RFC adaptor needs metadata for the RFC interface, such as the data type, to convert the call to the SAP PI Simple Object Access Protocol (SOAP) format. The RFC sender communication channel contains the configuration information for reaching the adaptor and the logon data for accessing the metadata.SAP Process Integration/Process Orchestration (PI/PO) is an integration platform that helps organisations combine systems, applications, and processes. It's based on the Service-Oriented Architecture (SOA) paradigm, which allows software applications to be designed as loosely-coupled services that can be reused and combined to create complex business processes.
SAP PI/PO offers a variety of capabilities, including:
Monitoring and error handling: Tools and dashboards to track message flow, performance metrics, error handling, and system status
Process automation: Graphical modelling tools to create executable process models
Advanced mapping and transformation: Mapping using graphical tools, XSLT, Java, and other scripting languages
Business Process Management (BPM): Allows organisations to automate complex business processes
Business Rules Management (BRM): Allows organisations to define their own business rules.

SAP PI/PO (Process Integration/Process Orchestration) is a tool that allows you to integrate solutions. It makes it easy to synchronise data between different systems. Let's say you are using the SAP ERP system, and you wish to integrate with the CRM system.