| Follow Notification | 
Follow button Click | 
  | 
User who followed | 
User who were followed | 
| Like! Notification | 
Like! link Click | 
  | 
User who did Like! | 
Use who posted the message that was Like!'ed | 
| Message Delete Notification | 
Delete link Click | 
  | 
User who deleted the message | 
User who posted the deleted message | 
| Group Invite Notification | 
Invite button Click | 
  | 
User who invited | 
User who was invoited | 
| Member Add Notification | 
Invite button Click | 
  | 
User who did forced invitation | 
User who received forced invitation | 
| Group Participation Approval Notification | 
Approve button Click | 
Participation Application to the group was made. | 
Group owner who did participation approval | 
User whose participation was approved | 
| Group Participation Disapproval Notification | 
Disapprove button Click | 
Participation Application to the group was made. | 
Group owner who did participation disapproval | 
User whose participation was disapproved | 
| Owner Authority Attach Notification | 
Authority Attach button Click | 
  | 
Group owner who attached owner authority | 
User who was attached with owner authority | 
| Group Expulsion Notification | 
Expulsion button Click | 
  | 
Group owner who did expulsion | 
User who received expulsion | 
| Group Edit Notification | 
Edit button Click | 
  | 
Group owner who did the editing | 
User participating in the group that was edited | 
| Group Delete Notification | 
Delete button Click | 
Participating in the group to be deleted. | 
Group owner who did the deletion | 
User participating in the group that was deleted | 
| Group Participation Notification | 
Participate button Click | 
Group owner of the group being participated. | 
User who participated | 
Group owner of the group participation was made to | 
| Group Participation Removal Notification | 
Leave button Click | 
Group owner of the group participation  is removed. | 
User who removed the participation | 
Group owner of the group participation was removed | 
| Group Participation Apply Notification | 
Apply button Click | 
Group owner of the group participation is applied. | 
User who did the participation application | 
Group owner of the group participation was applied |