Yes, it is possible for students to submit after the survey closes, in rare situations. We had to make a decision on what should happen if a student has a survey open at the time the survey closes. Here were the choices:

  1. Disallow surveys submitted just after the survey closes
  2. Allow the survey to be accepted and update the statistics accordingly


We chose the #2 option. So, after the survey is submitted to the closed survey the cached results are removed and the received count is updated accordingly.