On Salesforce, the sales users have a provision of clicking on a button Convert ( to a customer ) to change the status of the lead, which is the same as lead stage on Leadsquared. 

In a specific scenario, a user might want the lead stage on LSQ to be in sync with Salesforce's status change, meaning the lead stage should automatically change on LSQ as well.

This in now achievable by selecting these options on Salesforce. Also there is a provision to check/select the specific stage the user might want the lead to enter in LSQ, upon status change in Salesforce. Refer the screenshot: