The Email Digest does not support Notifications that are triggered from the Live Notifications[live_notifications] TableIssue Some Email Notifications, in particular the notification "Activity Stream @Mention Email" that is used with the '@ Mention' feature, are triggered based on records created in the live_notification table, even if the underlying action that triggered the Notification was on a record such as an Incident, Change, Problem etc (for example if a user used the '@ Mention' feature in an Incident worknote update). ReleaseAll ServiceNow releasesCauseThe way that live_notification records work is that each use of '@ Mention' will create a new, unique live_notification record. So if someone writes "@John Smith please escalate this incident" and then a few minutes later "@John Smith have you seen my previous update?" in an Incident record there will be two different live_notification records created, although both will refer to the same underlying Incident. If Email Digests is being used this will create Email Digest Parts [sys_email_digest_part] records as expected. However because the Target fields on the sys_email_digest_part records refer to different live_notification records (one will target the live_notification with text "please escalate this incident" and the other the live_notification with text "have you seen my previous update?") they will not be seen as being related to the same record by the Email Digests feature. By design the Email Digests feature will *not* aggregate updates from different Target records, in this case different Live Notification records. So the feature will not work as expected with Live Notifications and the '@ Mention' feature.