I have come across this error message in ssrs and cannot seem to locate the error. Report manager lets me logon-- I can navigate to the folder but once I click on the actual report I get this error and suggestions as to why and how to fix it??? Thanks in advance

It looks like your Report Server credentials are correct, but the credentials to access the data source for the report are not. You will need to fix the disabledcredentials used to access the data for the report.

You need to make sure that you assign the same ID/passwords to the "EXECUTION ACCOUNT" under "Reporting Services Configuration manager. Once you do that you should be able to run your reports. Murad

Make sure the user name (under Credentials stored securely in the report server) for the Data Sourceis not locked!!

Due tovery stringent security at our company we have our SQL domain service account (which runs SQL and Reporting Services and more importantly the Reporting Services Execution) set to deny log on local rights on the server, even though this account has log on as a service rights.Unfortunately the service account must have log on local rights to execute a report. Therefore after we removed the deny log on local setting for this account the report ran without this error.

That's what I needed. Thanks for the help.