This document provides instructions for integrating ECC6 and CRM systems through an RFC connection. It involves: 1. Configuring STMS on both systems and approving the connection between them. 2. Creating logical systems and assigning them to clients on both ECC6 and CRM. 3. Establishing an RFC connection from ECC6 to CRM using transaction code SM59, which requires specifying the host name, system number, and login parameters for remote access.