Issue:

-Cannot retrieve Retained data of Activity such as email, message, note while using edit filter in Activity view due to nature of Activity table. The query normally uses link-entity element to retrieve corresponding data in another table.

-Error message: The link-entity query is not supported.

-Current limitation: Queries are allowed on one table at a time. Joins and aggregation functions aren't allowed.

-Ask: The option to view retain data there should be hidden to avoid confusion for regular users. Or the current warning message should be more meaningful to user.