Migration from configurator to configurator 2

Hi, I am about to convert from configurator to configurator 2 for a school. We currently have approximately 200 ipads running through configurator. I am wondering if anyone has the full instructions on how to migrate all the redemption codes across. I live in Western Australia and have been into the Apple Store to ask this question and been told that they can not help me and that I would need to log a call with support....

Has anyone had experience with the full process and if you had problems what should I look out for?

Thanks in advance.