Creating Email Alerts for Categories in Delegated Reporting Groups

No, you can only create one custom email alert per category for any given Delegated Reporting Group.

For example, in Delegated Reporting Group A, you can create different email alerts for Grief in Gmail and Grief in Google Docs. However, you cannot have two email alerts for Grief in Gmail. If you need to create another email alert for Grief in Gmail, you will need to set up a new Delegated Reporting Group B and configure the custom email alerts for that group.