Here are some great resources to learn about Dynamics 365 Customer Service

Microsoft Business Applications – Dani Kahil

Microsoft Business Applications – Concepts Diagrams

Dataverse – Dani Kahill

Microsoft Dataverse – Concepts explained

Overview of all features with links to docs – Dani Kahil

Dynamics 365 Customer Service – Conceptual Diagram

Microsoft Learn – Dynamics 365 Customer Service

https://learn.microsoft.com/en-us/training/dynamics365/customer-service

Case Management – Neil Parkhurst

Overview

MB-230: Microsoft Dynamics 365 Customer Service – Customer Service Overview

MB-230: Microsoft Dynamics 365 Customer Service – Case Management (Part One)

MB-230: Microsoft Dynamics 365 Customer Service – Case Management (Part Two)

The rest of Neil’s series – more advance topics

https://neilparkhurst.com/category/crm-certifications/mb-230-dynamics-365-customer-service