Dear SoSci Survey,
Thank you for your quick response. In answer to your question, I am using a double-opt in mail that automatically redirects the respondent to the second questionnaire. As I mentioned, that part works. I am able to get the generated mail. I am able to click the link in the mail message and it sucessfully takes me to the second survey. The manual page I looked at was the one you referenced in your answer. Specifically I was attempting to follow this procedure:
Automatic Sending of Invitations
*This option is sensible when participants should start the survey straightaway after registering.
In the Opt-in question in Personalized link from, the first mailing is selected. This means the participant will begin with the first questionnaire directly after confirming their email address.
At the end of the questionnaire, the PHP function mailSchedule() (for separate data records) or mailResume() (if all waves should be saved in one data record) will be used in order to schedule the time-controlled sending of the next mailing(s). Independent of which two functions you use, specify false for the first parameter and the ID of the mailing for the second parameter.*
I am wondering if there is an argument I need to add to the link to transmit the ID. From what I see in another part of the instructions this should be automatic and the link generated by the double opt-in mail did have the 'd' parameter so it seems that it would not be necessary but I thought I would ask to be certain. Here is an example of the link in the text of the opt-in mail that directs me to the survey.
I extended the test time for the survey so the link continues to work.