How to enable automated data labeling for custom labeling job?

Hi there. I'm an engineer at AWS.

Automatic data labeling is only available for the first-party workflows: Image Classification, Text Classification, and Object Detection. As an alternative, you might consider orchestrating a series of labeling jobs with an intermediate step in which you train a machine learning model and perform inference to carry out an auto labeling step. We have a blog post that describes this "active learning" process to give you some ideas as to how you might accomplish this (https://aws.amazon.com/blogs/machine-learning/annotate-data-for-less-with-amazon-sagemaker-ground-truth-and-automated-data-labeling/).

Thank you for being a valued customer and for bringing this feature request to our attention.