If you need to send a notification whenever some operation occurs on your S3 bucket you can easily do that with S3 Events and AWS SNS (Simple Notification Service). This video will show you how to setup an email notification when an upload or delete happens. But you can also set other notification options like sending an SMS to a phone number or a request to an http(s) endpoint or even a message to an SQS queue. But you could also process the event with AWS Lambda and do some amazing stuff.
