Hey @kjackson,
We recorded a video on how to run batch transform maybe this helps you get started easier: https://www.youtube.com/watch?v=lnTixz0tUBg
When you look at the logs you should have 2 log streams, see below. Could you please share as much information as possible? The error should normally provide information why it failed.
Could there be some sort of permission set on the aws service level which prevents it from reaching the url? Though I believe 403 is a server side error so shouldn’t be something on my end?
Which IAM role do you use to run the batch transform job?