Pushing Data Models to Your Workspace
If you are defining your models in code (as opposed to using the Data Model Editor), you need to push your models to your Embeddable workspace to make them available in the dashboard builder.
Follow the Pushing Models and Components instructions to push your models.
Safe Publishing
Once you push your changes, your published customer-facing dashboards remain unaffected until you specifically click the Publish button. This allows you to view and test your changes in the builder experience before making them live for your customers.