As we already know the Subject table is used to create a hierarchy of topics to organize and maintain information and categorize service Cases, Knowledge Base Articles, and Products in Dynamics 365 CRM.
In recent 2021 Wave 2 release, new user experience on Subject table has been introduced i.e. a new subject control – Selection TreeView Control – has been added which makes it easier for users to view and search subject tree hierarchy. It is enabled by default for out-of-the-box forms as shown below:
This control makes it easy for users to view subject hierarchy as shown below:
Before, users were not able to search for the subject but this new control provides the ability to search across parent subject and child nodes as well, as shown below:
A subject column without control:
A subject column with modern control enabled:
Also, when we search for any subject, it highlights the result as shown below:
The new modern control i.e. Selection TreeView Control on the Subject field makes the user experience much easier for viewing n number of Parent Subject and Child Nodes.