All the custom entities created within the Organization in Dynamics 2011 platform will be in [Org Name]_MSCRM database. The following are the table types created:

  • For custom entities there will [entityname]+Base and [entityname]+ExtensionBase tables
  • For custom entities created as an activity entity there will be [entityname]+Base table created.





Custom Entity: Custom entities basically represent business entities.

Custom Entitiy as Activities (aka Activity Entities): They represent the tasks a user or team performs. The table in the article summarizes the differences between Custom Entity and Activity.