Data Warehouse Web.config Settings
The Web.config file requires the following entry for any site that includes a Data Warehouse.
In the httpModules element, add this section to the last of the httpModules, because of the depencies between the httpModules:
<add name="CommerceDataWarehouseAuthenticationModule" type="Microsoft.CommerceServer.Runtime.CommerceDataWarehouseAuthenticationModule, Microsoft.CommerceServer.Runtime, Version=6.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
You must have this entry to map the ASPX (ASP.NET Authentication) to Commerce Server 2009 R2 Authentication for the Data Warehouse Analytics (DWA) components. Without adding this entry, DWA will be unable to resolve sessions to the associated User Objects.