With the manual personalization you can personalize the normal survey link for each participant and assign the results. Like this your invitations will remain flexible for all channels and you will still get an assignment within the evaluation.
Please proceed as follow, to personalize the normal survey link:
Copy the survey link into a text or spreadsheet file for editing
At the end of the survey link, add the following characters for the initiation of personalization: /!pi
Behind /!pi set now your custom personalization
Send the survey link(s) to the participants
The personalization can consist numbers (0-9), letters (a-z, A-Z) with '/' or dashes (-).
Example of a personalized survey link:
The personalization "test-abc" ( in this example) will be shown in the individual results and export (XLS, CSV, SPSS).