If you only need a single log for each member ( an administrator’s tool ), then
please see Buddy Notes.
Buddy Member Notes allows your members to create private notes and reminders about other members.
A tab will be added to profiles: My Notes.
When viewing their own profile, the “My Notes” tab will also show links to all their per-member notes and any pending reminders.
If a reminder is created, the member who created it will receive a notification within 24 hours prior to the date they set. They will also receive an email, unless they deselect that option. Once the notification has been sent, they can create another single reminder for that user.
On the admin screen for Settings > Buddy Member Notes, administrators can select which roles can create notes and review existing Notes and Reminders.
Buddy Member Notes requires WordPress 4.0 or higher and BuddyPress or the BuddyBoss Platform. It is compatible with the latest versions of WordPress, BuddyPress, and the BuddyBoss Platform.
Your purchase includes a single site License Key that provides support and automatic Update Notices for one year.
NOTE: Buddy Member Notes does NOT support networked sites ( multisite ).