The Business Connector API is unable to run any queries in the Mail module because it is unable to find the BOs within the module.

Therefore, Kurve Graphs & Reports cannot be created from queries where the Mail Module is the primary BO.

The bug only happens if a Mail module BO is the Primary BO of the query.

This was noted as a TRIRIGA bug and resolved in platform 3.8

If you need to create graphs and reports using the Mail Module as the primary BO, you will need to upgrade your TRIRIGA Platform to 3.8.