You can view sub-accounts associated with messages in the Impact Dashboard.
Note: This feature is only available to Canvas customers.
Open Messages
In Global Navigation, click the Communication link [1]. Then click the Messages link [2].
View Messages
In the Manage Messages tab, click the Columns Visibility button[1]. Then click the Sub-account toggle [2] to display the sub-account field in the table.
Sub-account Field
The Sub-account field is displayed, showing the association between each message and its linked sub-account(s).