Please note: when you enroll in a free course, after you log in, the login button text will change to "Take this course". You must ALSO click on the "Take this course" button above to get access to all the lessons inside the course. [Screenshots]
This course explains how to build large Dialogflow ES bots. If you have more than 500 training phrases in your bot (excluding the ones which already come with the Default Welcome Intent), I would say your bot is a large one.
In this course I will provide some tips on building and maintaining such bots.