Posted on 7th December 2017 at 18:26
One of the new features in Dynamics 365 v9 is the Not In query within Advanced Find.
For example, users can query for all Cases that do not have a related Task, or Open Opportunities without any related Activities.
To do this, users launch advanced find from the icon on the navigation bar. In the query, they choose what type of record to look for, and then select a related record type to see the Does not contain data operator.