When can I send surveys to my backers?
We strongly recommend waiting at least 14 days after the end of your campaign before sending out surveys to your backers. Many backers' credit cards fail on Kickstarter, so they give them a week after the end of the campaign to update their card info and lock in their pledge. Then, it takes up to another week to process all cards and deliver the money and the corrected backer list to you.
Below are the recommended wait times, for each platform: