Thank you for reaching out to us on Microsoft Q&A forum.
If you have been using Microsoft Dynamics 365 Marketing for about four years, it might be wondering if Customer Journeys-Data is included. Right now, Customer Journeys-Data is part of the Dynamics 365 Customer Insights suite. If it’s not installed, you may need to buy it separately. I recommend checking with your Microsoft account representative to find out if there are any extra costs based on your subscription.
Regarding your app is still called Microsoft Marketing, this could be because of a recent branding change. Microsoft often updates product names, and sometimes it takes time for the changes to show up everywhere.
If you have any other questions, please let me know. Thank you again for your time and patience throughout this issue.
If you have found the answer provided to be helpful, please click on the "Accept answer/Upvote" button so that it is useful for other members in the Microsoft Q&A community.