While working in Customer Insights - Journeys, we had an issue with using multiple Attribute Groups in the Segment Builder. After talking to Microsoft Support, we learned that this was still a preview feature. We also learned that having Behavioral Groups, Existing Segments, and explicitly including or excluding records in Segments are all preview features.

There is only one piece of documentation that states that having multiple Attribute Groups is still a preview feature and there is no indication that it's in preview mode in the app itself. There is no documentation and nothing in the app that states that any of the other features mentioned above are in preview mode.

Please add something that indicates these features are still in preview mode, preferably in the Customer Insights - Journeys app itself, so that users can tell when they can use that feature in production, and whether, if there are any issues, it's because it's in preview or if it requires Microsoft Support.