The base Salesforce URL to use for logging in. If you are logging into a Salesforce instance other than the default, you must provide the root of the Salesforce URL.
Valid Values
url
where:
url
is the is the root of the Salesforce URL to which you want to connect.
Example
Suppose you have a Salesforce instance that is configured with a production instance and a sandbox instance. You can specify login.salesforce.com as the value for the HostName attribute to connect to the production instance or test.salesforce.com to connect to the sandbox instance: