In the Solid Edge draft environment, when the user tries to apply Ballooning and create a new CN (Characteristic Number) list the following Solid Edge Inspector error occurs:
This happens when the General Tolerances Table is not defined.
To solve this problem you need to select the "General Tolerances" command from Solid Edge Inspector menu:
and select from "Description" one of the Defined Tolerance Tables:
Then the Ballooning operation will be correctly executed: