Setting the Composer Service User in Salesforce To set the Composer Service User Navigate to Salesforce Setup as an admin-level user.Under the Administration section, click Users to expand the menu and then click Users.Click Login next the Composer Service User's Full Name. This action logs the admin in as the selected user. While logged in as the user, navigate to Conga Composer Setup by clicking the Conga Composer Setup item or tab.Under the Composer API section, click Set Service User.