I'm working with an external panel provider who wants to generate an individual ID when the panelists click on the link of the survey. The problem is that the panelists do not know their ID, so I cannot work with a password-field. According to the panel provider, I need an ID which is automatically generated when clicking on the link and that ID must be redirected to the panel provider afterwards. So I need to know whether SSI generates such an ID by clicking on the link and if so, how it is called so that I can refer to that ID in the redirect-links at the end of the study.
Any help is appreciated.