Cookie details
When I read the documentation, it said that when you set the survey permission to allow each respondent to complete only one survey, the application saves a cookie to the person's computer.
What is contained in the cookie? (IP Address? Invitation ID? or some combination?)
What if that person accesses the survey from a different computer? Home and Office computers?
If it's the IP address, what if your organization doesn't assign a permanant IP address to their users? What if an office computer's IP address changes every four or five days or on restart?
All of these issues effect the data...
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