Unable to schedule email report "The current action cannot be completed..."

Hi,

I'm unable to schedule a report in SCOM console, I have already checked the execution account on the Reporting Services Configuration Manager, also I have checked thedata source settings following this steps:

1)    Open Internet Explorer, visithttp://servername/reports.

2)    Click on “Show Details” on the upper right corner. If you see “Data Warehouse Main” listed, please click it and check its properties. The settings should be:

- Connection Type: Microsoft SQL server

-Connection String: data source=<Name of the SQL reporting server>;initial catalog=OperationsManagerDW;Integrated Security=SSPI

(Ensure the NETBIOS name of the SQL reporting server is used.)

-The option “credentials are not required” is selected.

I'll apreciate any suggestion to solve this issue.