The alert system allows you to turn on an alert for any quota cell so that a notification will be sent to you once the cell is full. This is a simplified version of the Alert Element in the Survey Editor. Response Summary alerts are only sent to the person who enabled the alert.
To add an alert for quota cell, open the Response Summary for the survey and select the "Quotas" tab. Then click "Manage Alerts."
A bell icon will appear next to each quota cell. Click the bell to enable the alert for the quota cell. The bell icon will become solid. Then click "Save Alert Changes" to save the changes.
The saved alerts are identified by a bell icon for the cell in the limit column.