Hi,

I have setup SSRS on our Farm. The Reporting Server is setup on one of the WFE's and the Database is on a seperate server.

On our site within SharePoint the Reports work fine and we have no issue. Howevere there is a part of the system that allows the users to download PDF versions of the report and this is done via custom code and this keeps on failing with the following error:

Server Error in '/' Application.

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The user does not exist or is not unique.

[ReportServerException: The user does not exist or is not unique.]

[ReportServerException: The user does not exist or is not unique.]

[ReportServerException: Report Server has encountered a SharePoint error. (rsSharePointError)]
   Microsoft.Reporting.WebForms.ServerReportSoapProxy.OnSoapException(SoapException e) +32
   Microsoft.Reporting.WebForms.Internal.Soap.ReportingServices2005.Execution.ProxyMethodInvocation.Execute(RSExecutionConnection connection, ProxyMethod`1 initialMethod, ProxyMethod`1 retryMethod) +841
   Microsoft.Reporting.WebForms.ServerReport.EnsureExecutionSession() +113
   Microsoft.Reporting.WebForms.ServerReport.SetParameters(IEnumerable`1 parameters) +156
   MyCompany.MyProject.UI.LayoutPages.PDFForms.Page_Load(Object sender, EventArgs e) +1237
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
   System.Web.UI.Control.OnLoad(EventArgs e) +132
   System.Web.UI.Control.LoadRecursive() +66
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428

I have spent days trying to sort out this issue with no luck. The SharePoint ULS logs dont give any more info. I put a trace on the content database to see what was going on and saw that it tries to run the following stored procedure:

exec proc_SecResolvePrincipal @SiteId='1F989F45-0951-4AE7-AF34-D97E0FAF539C',@Input=N'NT AUTHORITY\IUSR',@InputIsEmailOnly=0,@AccountName=NULL,@DLAlias=NULL,@DLAliasServerAddress=NULL,@SearchScope=5,@RequestGuid='00000000-0000-0000-0000-000000000000'

This returns no results as there is no such user in the UserInfo Table of the SharePoint Site Collection and I believe this is where the "User does not exist" error is originating from. The question is why is the Reporting Server trying to look for this user?

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