The following settings have to be defined in order to use the Salesforce destination.
Your Salesforce username.
The corresponding password.
The Security Token, which was generated by Salesforce and is used to access API functions. The Reset Security Token link will take you to the website where you can reset your current Security Token.
To reset your security token on Salesforce go at the top navigation bar go to your name > Setup > Personal Setup > My Personal Information > Reset My Security Token.
checks if a connection to Salesforce can be established.