Ref: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19b/oapjs/update-project-performance-data-and-generate-kpis.html#OAPJS16654 Performance Status Indicator Performance status indicators give an immediate picture of the status of a project, such as critical, at risk, and on track. Each distinct icon indicates the status and severity of performance. During KPI definition, you first associate status indicators with performance statuses:
Critical
Severe
At risk
On track
Ahead
You then associate these statuses with threshold levels. When KPI values are generated for a project, each value is compared to the defined thresholds and the corresponding status indicator for the KPI appears on project performance reports.
A status can identify negative performance so that you can take the appropriate actions to prevent or quickly resolve problems. Conversely, a status can identify positive performance to help you track expected or excellent performance.
https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19b/fapfm/implementing-project-financial-management-applications.html#FAPFM975706 Create Key Performance Indicators Create key performance indicators (KPI) to measure how well your organization performs an operational, tactical, or strategic activity that is critical for the current and future success of the organization.
Note: To create KPIs you must enable a project unit to track key performance indicators.
Use the Threshold Levels section to specify thresholds to indicate the health status of a KPI. Select one of the following options:
Multiple threshold levels
Single threshold level value
Single threshold level range

Ref: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19a/oapem/execute-project-tasks-and-deliverables.html#OAPEM1122082 Followers are persons who aren't working on the task but have an interest in reviewing the task progress. Only the resources and other followers can add followers to a task. If a resource assigns the task to another team member, the application automatically changes the original resource to a follower.
What's the difference between my tasks and tasks that I follow?
You can edit task details and enter progress for your tasks on the Manage Tasks page. If a task has multiple resources, only the primary resource can edit the task.
When you follow a task, you can view the task details and see the task activity stream. You receive e-mail notifications of changes that team members make to the task.
If a resource reassigns the task to another team member, then the previous resource automatically becomes a follower.

Ref: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19a/oapfm/project-foundation-configuration-manage-project-types.html#OAPFM220111 Topic - Asset Cost Allocation Methods: Explained The asset cost allocation method determines how indirect or common costs incurred on a project are allocated to multiple assets.
You can specify an asset cost allocation method to enable Oracle Fusion Project Costing to automatically allocate unassigned asset lines and common costs across multiple assets. Unassigned asset lines typically occur when more than one asset is assigned to an asset grouping level.
Projects and project templates inherit a default asset cost allocation method from the associated project type. You can override the default at the project level. If you use capital events to allocate costs, then you can also override the asset cost allocation method at the event level.
The following table describes the available asset cost allocation methods.
Method
Basis of Cost Allocation
Actual Units
Number of units defined for each asset
Current Cost
Construction-in-process (CIP) cost of each asset
Estimated Cost
Estimated cost of each asset
Standard Unit Cost
Combination of the standard unit cost and the number of units defined for each asset Spread Evenly Equal allocation of cost to each asset

Ref: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19b/oapfm/project-foundation-configuration-define-project-resource-breakdown-structures.html#OAPFM180158_2 Why can't I find persons in the list of resources when I enter team members, planning resources, or person rate schedules?
You can't find persons in the list of resources when you enter team members, planning resources, or person rate schedules in the following situations:
The administrator didn't assign a department while creating users. Persons must have an active assignment and be assigned to a department in Oracle Fusion Human Capital Management before they can be added as team members or entered as resources on the planning resource breakdown structure or person rate schedule.
The resource isn't active in Oracle Fusion Human Capital Management because the current date is before the effective date of the resource. If you want to include persons who will start in the future, select the Include people with future-dated effective start dates option when you search for the person.
Persons assigned as project managers aren't active as of the project start date.
The assignment of the person is terminated, and an appropriate value isn't set for the number of days to display people with terminated assignments. You can set the profile value appropriately at the site profile level using the Specify Number of Days to Display People with Terminated Assignments task in the Setup and Maintenance work area.

Ref: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19a/oapem/evaluate-and-assign-resources.html#OAPEM916359 Topic - Resource Available Capacity Score: How It's Calculated Calendars Used to Calculate Resource Available Capacity Scores How the Resource Available Capacity Score Is Calculated