Not getting subscription option in the settings menu of any folder

Hi Experts,

We are using SAP NW 7.3. We are facing issue with subscription option which
is available under settings menu ( it comes when we check the details of any
folder under the KM).

The issue is, some end users are not getting subscription option in the
settings menu. Could you please help us in finding the missing authorization?

Regards,

Nitin Goel