Hi, if I distribute a survey via both an Anonymous Link with authentication and Qualtrics mailer, can I still ensure that each participant will still only take the survey once?For example, if someone has completed the survey via the link in their email, when they try the anonymous link and enter their email address will it prevent the person from doing the survey again? And vice versa, if someone has completed the survey via the anonymous link (having had to first authenticate by entering their email address) and then try to complete it using the survey link in their email, will it prevent the person from doing the survey again?Also, is there another way to authenticate the person besides asking them to submit their email address e.g. SSO if they use a work device or something like that?

Hi @ChristineNZYou can control who should see the authentication by using branching.In the anonymous link, you should already have this part:&Q_EE_ANON=1This means that you you can use this in the survey flow like this:That way you would see the authenticate function only if you are using the anonymous link.

Anonymous link and Qualtrics mailer distribution at same time

Anonymous link and Qualtrics mailer distribution at same time | Experience Community

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