thank you. I think a hidden question and generate a number is a good idea.
let me explain my problem more clearly. I have employed some interviewer for my survey. they go to the city and fill questionnaires with people. my problem is that some of my interviewers argued that they fill 10 survey but I have only 7 form in my database. I seek a way for them and me to recognize weather their argues is true or not.
so I think if I can generate to create a code including the start time and end time (for example) I can virtually solve my problem.
thanks again for your help

For your needs, i think i use token and some of my plugins …

1. Create an unique token for your interviewer
2. Check "Allow multiple" + uncheck "token anser persistance"
3. Add this plugin : gitlab.com/SondagesPro/managament/responseListAndManage (remind to read the README )
4. Check the settings and the link (on Tool Menu)
5. Give the new link at your interviewer
6. With the new login link : they see all of their already done survey, and can create new ones (or update previous one)

this link is broken!

Which of the various links posted here are you referring to?

gitlab.com/SondagesPro/managament/responseListAndManage
this link is broken!

hmd_bakhshi wrote: gitlab.com/SondagesPro/managament/responseListAndManage
this link is broken!

?

It work here but …

oh shit … i don't mind …

On June 4, 2018, the same day GitHub was acquired by Microsoft,[32][33] some projects previously hosted on GitHub might have been moved to GitLab.[34] GitLab moved from Microsoft Azure to Google Cloud Platform in August 11, 2018, which made the service inaccessible to users in Crimea, Cuba, Iran, North Korea, Sudan, and Syria, due to sanctions imposed by Office of Foreign Assets Control of the United States.[35]

en.wikipedia.org/wiki/GitLab

I must host a git web or use another git …

[edit]
OK , mirrors
1. Mine : git.sondages.pro/?p=responseListAndManage/.git;a=summary
2. github : github.com/SondagesPro/LS-responseListAndManage

gitlab.com/SondagesPro/managament/responseListAndManage
this link is broken!

Works here as well.

holch wrote: Works here as well.

I assume that hmd_bakhshi is trying to access the URL via IRAN.

Embargo of hosting provider.

Crimea, Cuba, Iran, North Korea, Sudan, and Syria

But I wonder, if Azure shouldn't have the same embargo restrictions.

DenisChenu wrote:
[edit]
OK , mirrors
1. Mine : git.sondages.pro/?p=responseListAndManage/.git;a=summary
2. github : github.com/SondagesPro/LS-responseListAndManage

Yep,

Mirror are here … i must setup mine gitlab but no time currently … maybe i move again to framagit …

jelo wrote: Embargo of hosting provider.

Crimea, Cuba, Iran, North Korea, Sudan, and Syria

But I wonder, if Azure shouldn't have the same embargo restrictions.

Ahh, good to know. So Brazil is obviously not on the list.

I think if I can generate a code include the the uses left for filling a survey, the time of conduct it, the Id of the participant etc. it's a good way to show at the end message.
I want to do it with expression manager. but I don't know what's the name of these attribute for using in EM. can you help me? do you know any link that include these variable names for EM?
thanks