Duplicate Detection during Record Create and Update Operations Not Supported

In this blog write about the fact that Duplicate Detection Rules are not triggered when using the Updated User Interface Forms in Microsoft Dynamics CRM 2011 and Microsoft Dynamics CRM Online . Newly created and uncustomised Microsoft Dynamics CRM 2011 Organisations include a number of predefined Duplicate Detection Rules such as those shown in the following screenshot: Since Rollup 12, newly created and uncustomised Microsoft Dynamics CRM 2011 Organisations also use the Updated User Interface Forms...(read more)