This document provides steps to use Mule applications to facilitate communication between on-premises systems and Salesforce by adding contact records from a CSV file into a Salesforce organization. The steps include creating an example Mule application in Anypoint Studio, configuring the Salesforce global element with a security token from your Salesforce account, running the application to process a sample contacts CSV file, and verifying the new contacts were added to the Salesforce Contacts tab. The application polls an input folder for CSV files, processes the records, and deposits the output into a separate output folder.