The precedence order that is used by the system for labor schedules to distribute payroll cost is Assignment > Assignment Element > Element. This means that the system first looks for a labor schedule that is assigned to the employee assignment, then for a labor schedule that is assigned to the payroll element of the employee assignment, and finally for a labor schedule that is assigned to the payroll element itself. The system uses the first labor schedule that it finds in this order to distribute the payroll cost to projects and tasks based on the hours and rates defined in the schedule. https://docs.oracle.com/en/cloud/saas/project-portfolio-management/20c/oapfm/manage-project-costs.html#OAPFM2356121

Reference https://docs.oracle.com/cloud/latest/projectcs_gs/OAPEM/OAPEM1122096.htm The following table lists the project statuses and what you can do with projects in that status.
Project Status
What you can do?
Draft
Project managers can view draft projects in the Project Manager Dashboard and use the projects for requirements planning.
Team members can,t see the tasks from draft projects on the Team Member Dashboard or in the My Work area.
Active
Project managers can view active projects in the Project Manager Dashboard and use the projects for requirements planning, project execution, and reporting.
Team members can view task assignments on active projects on the Team Member Dashboard and My Work area.
Pending Close
Project managers can view pending projects in the Project Manager Dashboard and use the projects for project tracking, and reporting.
Team members can view task assignments on pending projects on the Team Member Dashboard and My Work area.
Submitted
Project managers can view submitted projects in the Project Manager Dashboard and use the projects for project tracking, and reporting.
Team members can view task assignments on submitted projects on the Team Member Dashboard and My Work area Closed Project managers can,t view closed projects in the Project Manager Dashboard or use the projects for requirements planning, project execution, and reporting.
Team members can,t view tasks of closed projects on the Team Member Dashboard or in the My Work area.

Reference https://docs.oracle.com/cd/E37583_01/doc.1116/e22598/F458900AN13D82.htm How Resource Mapping Is Calculated You can track the cost impact of every resource that has been assigned to a project task and use the resource breakdown structure to view the breakdown of these costs. Oracle Fusion Projects associates the costs of the resources used for tasks with branches and levels in the resource breakdown structure. The process for determining the correct association is managed by rules of precedence.
Oracle Fusion Projects uses the following rules to associate cost amounts with resources:
Select the lowest level in the resource breakdown structure to which a transaction can map.
If there is only one level to which the transaction maps, the cost amounts are mapped to that level.
If the transaction maps to more than one level, Oracle Fusion Projects sums the precedence numbers for all resource types in the branch and gives precedence to the resource element in the branch with the lowest sum.
If more than one branch has the lowest precedence number at the lower level, the application uses the precedence number of the next level up.
If the sum of precedence numbers is the same for more than one branch, precedence is given to the branch with the lowest number at the lowest level.
If one branch contains a user-defined resource type, precedence is given to the branch that does not contain a user-defined resource type.
Note Oracle Fusion Projects gives more precedence to a lower precedence number. For example, a resource element with a precedence number of 1 is given precedence over a resource element with a precedence number of 10.

Ref: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19a/oefpp/toc.htm

Reference https://docs.oracle.com/cloud/latest/common/FASCC/FASCC1124283.htm Topic - Contract Actions and Status Changes: Explained