As a prerequisite for the training from the Business Central process, you still need to publish your general prediction ML web service into your Azure subscription.

Visit https://gallery.azure.ai/Experiment/Prediction-Experiment-for-Dynamics-365-Business-Central in your favorite browser.

This is a publicly available model prepared by the Microsoft ERP team and was designed especially for ML prediction management use:

To publish it, follow these steps:

1. Open this experiment in Azure ML Studio.
2. Run it, and then deploy it as a web service.
3. In the web service dashboard, copy the API key.