It is possible to edit your survey up to a maximum of 24 hours before your chosen survey period starts.
Click on the tab “Projects” in the menu on the left in My Effectory to select the project that includes your survey(s), and then click on “View all surveys”. Next, click on the three bullets and then the pencil icon to the right of the survey you want to edit.
Within 24 hours before the survey starts you can no longer make any changes. However, it is possible to remove the survey 24 hours before is starts, and to create a new one if necessary.