I have Zoho Survey setup with Integration for Add\Update new entries in to CRM, When a survey is completed i get a notification and a new lead is generated. Great so far! 

I created a campaign in CRM and i had the option to pick Survey or offline, i picked Survey, selected the survey setup all the other info about the campaign and its been over 24 hours, i have more leads from the survey since setting up the campaign but no one showing linked to the campaign. 

I may have misunderstood what that option was for but i thought i could link a lead to the campaign as they completed a survey. I know I can create an offline one and do it that way but I can't see why it wouldn't work this way?