How to give your customers exactly the information they’re looking for, at exactly the right time? The answer lies in real-time data processing in the cloud. Like the data you extract from e-mail responses. A huge challenge when you send out over 500.000 e-mails to about ten million customers each month. Technical specialists Aleks and Piet managed to build a feed back loop with data, using different tools like Pega, Acoustic, Python and Kafka.