ODM Access Privileges

I am currently in the process of activating an instance of On Demand Marketing (ODM) and am having trouble granting a few of my users access to the module.  The users continually receive errors based on their access levels.  Could someone either tell me or point me to a document which tells me of the exact Privileges which must be enabled in a non-admin user's Role or what settings must be active in their Access Profiles to allow them access to the ODM module?

Thank You,

-Dave