How to stop a user from manipulating a URL for an email campaign

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I have created an email campaign, and want to make sure that the contacts who receive the invitation can only take the survey once.

However, I noticed that I can take a survey, then click on the link again, and after I get the Thank You page, I can change the URL and remove the GUID and it allows me to take the survey again. The response is recorded against the contact for the second time.

How can I detect this is happening so I can prevent the user from taking the same survey multiple times?

 

Lola Gill answered
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    Lola Gill 6.46K Rep.

    I don’t think there is an option to lock down the url bar, but you could probably implement some additional security in the survey to prevent another response from being submitted.

    I would recommend using the email campaign in conjunction with the Login/Password Action which would require a password in order to proceed in the survey. Once the password is used, the survey cannot be accessed again using that password (even if the url is altered).

    Here is more info on the feature:

    https://help.surveygizmo.com/help/login-password-action

    There are also a couple of ways to integrate email campaigns and login actions:

    https://help.surveygizmo.com/help/login-action-and-email-campaigns

    Hope this helps!

    Lola Gill answered
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