Support for Dynamics 365 varies by product
- Customer Engagement – Help and Support in Power Platform Admin Centre
- Finance & Operations – Lifecycle Services (LCS)
- Retail – Lifecycle Services (LCS)
- Talent – Lifecycle Services (LCS)
- Business Central – via Partner
You can also obtain support from the Community: http://community.dynamics.com
See https://docs.microsoft.com/en-gb/dynamics365/get-started/support/ for more details.
Pingback: MB-900 Microsoft Dynamics 365 Fundamentals Revision Guide | Microsoft Dynamics 365 UK MCT