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pass in vs merged fields for SetValue variables

Hi all

What is the best place to store variables for later use in the SetValue function? We use this quite a bit, and have stored them in either place at various times.  They seem to work in either spot, but we're wondering if there are any drawbacks for each?
asked Jan 22, 2014 by Marion Bronze (3,435 points)
I've been defining variables as pass-in fields then setting and getting them throughout the survey using the SSI script functions. Interested to hear others opinions.
I've always done it the same as you Paul.  Whether it's a merged variable or pass-in, it's treated the same way.

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