I am using SSRS 2008 R2 to build a report that uses a Sharepoint list as its data source, to which it is configured to connect using Windows Authentication (Integrated Security). The problem is that when the report is deployed to the Report Server, the SharePoint source rejects the credentials, returning:
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An error has occurred during report processing. (rsProcessingAborted)
Query execution failed for dataset 'ListDataset'. (rsErrorExecutingCommand)
An error occurred when accessing the specified SharePoint list. The connection
string might not be valid. Verify that the connection string is correct.
(rsSPDataProviderError)
The request failed with HTTP status 401: Unauthorized.
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The Sharepoint data source accepts my credentials when I test the report locally in
BIDS, but does not accept them after they 'double-hop' from the Report Server. What is the best work-around? Do I need to create a Service Account in SSRS, supply those credentials in the data source within SSRS, and grant the necessary read permissions to the Service Account via Sharepoint? Any suggestions would be greatly appreciated.
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