CSM users closing cases without the assigned to field populated

[CarolMa6]

Hi 

CSM users are currently able to close cases without populating the 'Assigned to' field, even though it is set as mandatory via a UI policy when resolving or closing a case. Despite this, users are still bypassing the requirement.  How can I resolve this?

User can close the case as shown below 

VS the below when i attempt to close the case

[palanikumar]

Are they doing it via List view? Convert your UI Policies to Data Policy which will ensure this validation everywhere

[Mexiprince]

Howdy,

Same UI policy can be converted to data policy for increased coverage