So you have built a Django site, the client is happy and you put it in production mode in the wild. But what if there are errors in cases that you could not even have imagined? How do you make sure you know what errors that users are experiencing? At the very least you should enable logging, with email alerts being sent for any ERROR or CRITICAL level errors. This is probably acceptable for a low traffic site. I would however reccomend using Sentry with thier powerful Djando intergration. In this tutorial, we will look at how easy it is to intergrate a free Sentry account with our project, and as a bonus, set up some custom error pages that also send logs to Sentry and even have an optional feedback form.