I have a survey that I want to distribute now, again in 6 months and then again in 12 months to the same people. We want to link the answers together without asking for a name or email address (the survey will get distributed through a 3dr party). Is it possible to somehow link this together without disturbing the anonymity? For example, would it be possible to use the personal links more than once?
Thanks in advance!
Solved
Can you link a survey with an "ID"?
Best answer by rondev
In the survey 1 generate a random number and ask respondent to remember it for future surveys. In the same survey create a contact list trigger and add this random number to contact list external data reference.
In the follow up surveys ask respondents the same random number of survey 1 and authenticate it using authenticator.
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