Hi there,

I would like to administer a survey with tokens, and I want to ensure that each token will be used only once.

I know that if I set "allow multiple responses" OFF a token cannot be used after a response with the same token was submitted. However I would like to prevent the usage of a token also if the token has been used but the response was not yet submitted.

Is it possible?

Thanks you in advance.

If you enable token-based response persistence, the respondent should be sent back to the uncompleted response.

- www.limesurvey.org/manual/Participant_se...onses_with_one_token

Thank you, Tony.

But I am looking for something slightly different: when someone (it does not matter whether it is the same user or another user) tries to use the same token again, I would like to tell them that the token was already used.

As far as I know, that's not possible.

But I am looking for something slightly different: when someone (it does not matter whether it is the same user or another user) tries to use the same token again, I would like to tell them that the token was already used.

Like Tony, as far as I know, that is not possible.

Because where would you set the cut off? If someone starts the survey, stops for a few minutes, then goes back. Should this already be excluded? Or only after hours? How will Limesurvey know, when to make the cut off?

More details + plugin can do this.