As previously announced, Microsoft Social Engagement (MSE) will be discontinued for all customers on January 16, 2020. As a current Dynamics 365 customer, you can continue using the Microsoft Social Engagement service until the expiration of your subscription or January 16, 2020, whichever comes first.
Please refer to FAQ page or email mseeol@microsoft.com for any further assistance related to the end of your Microsoft Social Engagement subscription. Customers are requested to look for other social engagement solutions available in Microsoft AppSource or outside markets.