Dear SurveyEngine colleagues,
I am ready to launch my survey but my survey panel company is having some issues identifying respondents their end through their provided passbacks, but I can see the data fine in SurveyEngine and can see each of the respondents ID’s under the “EXTID” column in my dataset.
I have consulted the “Live Data Collection” tutorial, as well as read the description of panel links on “The Invitation Screen” in the SurveyEngine documentation but the cause of the issue is still unclear. I have seen a similar post on the forum, and perhaps others may face the same issue.
A step-by-step of implementation would be very useful if possible. For reference, if my survey panel company has issued four passbacks:
 Complete: https:__example URL__0425864e5361
 Termination: https:__example URL__ClientCallBack.aspx?RIS=20
 Duplication/Security Termination: https:exampleURL/ClientCallBack.aspx?RIS=30
 Overquota: https:exampleURL/ClientCallBack.aspx?RIS=40
I have copied ,  and  into the relevant places under the invitations > panel invitations.
The ID parameter is described in documentation as:
“An ID parameter is also provided to specify the name of the parameter containing the unique id. On completion of a survey, the passbacks will be automatically appended with the id parameter and the id that the survey was started with.” and also as " Enter a custom id parameter that the external panel requires to pass the respondent id."
Unfortunately, I cannot make sense of these descriptions and think this might be where the issue is occurring.
Would it be possible to provide a step-by-step example using the example links above that I (and others) could follow if using an external survey panel company.
Thanks in advance,