FIX: "Report parameter values must be specified" error when you click a hyperlink in an email message to view a SSRS 2008 R2 report

Consider the following scenario:

• You install Microsoft SQL Server 2008 R2 Reporting Services (SSRS 2008 R2). Then, you configure the SSRS 2008 R2 report server to run in SharePoint Integrated mode. 
• You create a report that has a multivalued parameter that references a SharePoint document library. Then, you deploy the report to the SharePoint document library.
• You configure an email subscription for the report and you select several different values for the parameter.
• A user receives a subscription email message, and then the user clicks the hyperlink in the message to see the report.

In this scenario, the report is not displayed, and the user receives the following error message: 

This issue occurs because SSRS 2008 R2 incorrectly generates the multivalued parameters in the hyperlink of the subscription email message.  

Cumulative update information

SQL Server 2008 R2

The fix for this issue was first released in Cumulative Update 6. For more information about how to obtain this cumulative update package for SQL Server 2008 R2, click the following article number to view the article in the Microsoft Knowledge Base: Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about how to create and manage Subscriptions (Reporting Services in SharePoint Integrated Mode), visit the following Microsoft Developer Network (MSDN) website: