CRM easy rule & Resource Duplicate Detection

Easy Duplicate Detection? - Microsoft Dynamics CRM Forum Community Forum
https://community.dynamics.com/crm/f/microsoft-dynamics-crm-forum/115798/easy-duplicate-detection

The Modern Rules of Customer Relationship Management (CRM)
https://blog.higherlogic.com/2013/03/12/The-Modern-Rules-of-Customer-Relationship-Management-CRM

Set up rules to automatically create or update records (Dynamics 365 Customer Service) | Microsoft Docs
https://docs.microsoft.com/en-us/dynamics365/customer-service/set-up-rules-to-automatically-create-or-update-records