running CRM 2011 SQL based custom report from reporting server we need to
specify username and password.
should be systemuserid and password should be organizationid.
If you are
using username as domain\account and passport of account, you might get
An error has occurred during report processing
(rsProcessingAborted) Cannot create a connection to data source ‘CRM.’
(rsErrorOpeningConnection) Guid should contain 32 digits with 4 dashes
To get systemuserid and
organizationid, you need to run SQL query on CRM database. Here is the query