SNS Preparation Central As you begin to prepare for the SNS Credentialing Exam, there are some tried-and-true techniques that can help you make sure you’re not overlooking anything as you prepare. So many school nutrition professionals prepare for the SNS by just reading and then they’re disappointed if they don’t pass the exam. The reality is, knowing the source information is only a small part of the preparation most people need to go through in order to take the exam. That is why we have developed some new resources to help you on your journey to become SNS Credentialed. SNS Credentialing Preparation Course Exam Prep Tips & Tricks