SAP BASIS Transaction T Code SM59
In this transaction the Remote Function Call (RFC) are
maintained that is required for communication between the SAP systems in the
location and also to external systems and programs. This is setup according to
the requirements and type of connection.
ABAP connection is used for communicating between the SAP
systems, TCP/IP connection is used for the non-sap systems or IP Address.
In an ABAP connection the input values to be maintained –
Name of RFC
Description of RFC
Target host
System number
Gateway Host
Gateway Service
On maintenance after save, the connection Test can be
performed to check the connectivity is properly established and the time taken.