Microsoft Dynamics CRM is a customer relationship management software package developed by Microsoft. The product focuses mainly on Sales, Marketing, and Service (help desk) sectors, but Microsoft has been marketing Dynamics CRM as a CRM platform and has been encouraging partners to use its proprietary (.NET based) framework to customize it. It is part of the Microsoft Dynamics family of business applications.

Dynamics CRM is a server-client application, which, like Microsoft SharePoint, is primarily an IIS-based web application which also supports extensive web services interfaces. Clients access Dynamics CRM either by using a browser or by a thick client plug-in to Microsoft Outlook. Besides Internet Explorer, Chrome and Firefox browsers are fully supported since Microsoft Dynamics CRM 2011 Update Rollup 12.