Each subscription that is associated with a particular source must have a unique name that can be up to 127 characters. Within a group a subscription is identified by its source and name, in the format source_name/subscription_name. If you change the name of a subscription that also is a member of one or more groups, the name is automatically changed wherever the subscription is used.
To rename a subscription:
Select the subscription that you want to rename.
Right-click and select the Rename command to display the Rename Subscription dialog.
Enter a new name for the subscription and click OK.