
You have defined a selection and specified to which category the selected work items will be assigned (see also: Defining the Selection ).
In the subscription you can define whether notifications are sent to all or just particular users. For example, if you have defined a selection that selects work items for approving purchase orders, you can define whether all responsible agents are notified about the work items, or just agents A and B.
If all users are to be notified you only need to define one subscription. All responsible agents then receive a notification.
If only particular users are to be notified, define a subscription for each user. In this case, of all the responsible agents, only those for whom you created a subscription will receive a notification.