As a marketing agency we create and manage marketing campaign for a lot of customers simultaneously. Which means we at one point, had 800+ campaigns running. This made it difficult for us to track and find out which messages worked and which didn’t. It also made it rather impossible to allocate the marketing budget appropriately. We were left with too much data and, at the same time, we did not have enough data on each campaign to actually learn anything. It was quite a headache.