Hi @BethChaim. At this time, polls created through the Action Block tool cannot be closed and multiple responses cannot be restricted. While I can track the second request on your account, I encourage you to allow vote or comment on the the post below located on our Feedback boards regarding ending/closing a poll. Though we do not have a time estimate if a feature like this will be available in the product, any updates will be posted there, not on this post. Voting and commenting on the linked post helps to influence future product decisions and allows you to be notified of replies from our teams.