RFC CLIENT is the instance that calls up the Remote Function Call (RFC) to execute the function that is provided by an RFC server. The process that starts the RFC is called the sender or client, and the process in which the RFC is executed is the RECIPIENT or server.

SAY we have CRM and R/3 System. If we want to read Sales Order’s Delivery Status record from R/3 System’s database, we will have to create a remotely callable function module in the R/3 ENVIRONMENT which retrieves Sales Order’s Delivery Status records. Now we will have to call this function from the CRM System using a remote function call (Also list the destination for the target R/3 System in SM59). In this case CRM server acts as an RFC Client and R/3 acts as an RFC Server.

RFC client is the instance that calls up the Remote Function Call (RFC) to execute the function that is provided by an RFC server. The process that starts the RFC is called the sender or client, and the process in which the RFC is executed is the recipient or server.

Say we have CRM and R/3 System. If we want to read Sales Order’s Delivery Status record from R/3 System’s database, we will have to create a remotely callable function module in the R/3 environment which retrieves Sales Order’s Delivery Status records. Now we will have to call this function from the CRM System using a remote function call (Also list the destination for the target R/3 System in SM59). In this case CRM server acts as an RFC Client and R/3 acts as an RFC Server.