
You're on the right track wanting to create a subscription center and subscription lists in Dynamics 365 Customer Insights - Journeys (formerly Dynamics 365 Marketing). However, the way you create and manage these has changed slightly.
Here's a breakdown of how to create subscription centers and lists in Real-time journeys, and what you might be missing:
Key Concepts:
Steps to Create a Preference Center:
What You Might Be Missing:
Important Notes:
Refer Create branded, customized preference centers to manage customer consent for more details https://learn.microsoft.com/en-us/dynamics365/customer-insights/journeys/real-time-marketing-preference-centers