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Your LimeSurvey version: 3.17.3+190429
Own server or LimeSurvey hosting : Limeserver hosting
Survey theme/template: Vanilla / Minimal template
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Hi everyone,

I use LimeSurvey for the first time, and i want to assign a random and unique number for each user.
I would also like this number to be displayed at the end of the questionnaire.

I had thought of 2 options:
- Either generate this number via a correspondence table on a first questionnaire, and send the participant to the second questionnaire
- Either display the participant's identification number at the end of the questionnaire (but I can't find how to display a value at the end of the questionnaire).

For the 2nd solution, I found this topic : forums.limesurvey.org/forum/can-i-do-thi...he-end-of-the-survey
But it doesn't help me much, because I don't know how to display a value at the end of the questionnaire.

Could you help me?
Thanks in advance

Hi, the first answer of your link contains the solution.
The {SAVEDID} returns a unique number of each response.
It is just an autoincremental value.
If desired you can extend it by some arithmetical manipulation.
And it is displayed - whenever you want - by ExpressionScript.
Like {135724+SAVEDID}
This way you get a six digit unique number for each respondent.

Read the manual about question type "equation" and about "ExpressionScript"

Joffm