I have an activity in the Account history that was created by one user (user A) but is not visible by user B. Both Users are have the same profile and are part of the same User Group.
The Account sharing settings is set to Private but I have a sharing rule that allows for the above uses Read/Write on the accounts owned by users in the same Group. User A is the owner of the Account and the Activity
Activity org wide sharing is set to Controlled by Parent.
On the other hand, activities in the Open Activities list are visible to both users.
How do I make User B see the activities owned by User A?