Status tracking is a feature that allows you to track the progress and history of project invoice approval notifications. Status tracking provides information such as who approved or rejected the invoice, when and why they took the action, who is currently assigned to approve or reject the invoice, etc. Three of the information that can be tracked as status tracking for project invoice approval notifications are:
Person assigned for approval: This shows the name of the person who is currently assigned to approve or reject the invoice notification.
Prior actions: This shows the list of actions that have been taken on the invoice notification by previous approvers or rejectors, such as approve, reject, request information, etc.
Persons with whom it is still pending approval: This shows the list of persons who are still in the approval chain for the invoice notification and have not taken any action yet. Pre-approval activities and date-wise updates to the document are not information that can be tracked as status tracking for project invoice approval notifications. Pre-approval activities are tasks that need to be performed before submitting an invoice for approval, such as validating or transferring the invoice. Date-wise updates to the document are changes that are made to the invoice document after it has been submitted for approval, such as adjusting or reversing the invoice. https://docs.oracle.com/en/cloud/saas/project-portfolio-management/20c/oapfm/manage-project-invoices.html#OAPFM2356291

Ref: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19a/oapem/analyze-project-management-performance.html#OAPEM1313471 Topic - Project Labor Demand: How It,s Calculated Settings That Affect Project Labor Demand Project application administrators must do the following to set up how project labor demand is calculated:
Organize projects into hierarchical groups on the Manage Enterprise Project Structure page.
Change the quarterly FTE hours for the organization on the Define Project Management Implementation Options page, if different from 520 hours.
Note: You can choose to view labor demand annually instead of quarterly. The Project Hierarchy Viewer uses the current date to determine which year or quarter to display.

The workflows in Project Financial Management are business processes that automate the approval and notification tasks for various project transactions and events. Two of the workflows in Project Financial Management are:
Project Status Change: This workflow manages the approval and notification tasks for changing the status of a project or task from one value to another. For example, when a project or task is submitted for approval, this workflow routes the request to the appropriate approvers and notifies them of the action required.
Expenditure Item Adjustment: This workflow manages the approval and notification tasks for adjusting expenditure items that have been charged to a project or task. For example, when an expenditure item is adjusted by a project manager or a cost accountant, this workflow routes the adjustment to the appropriate approvers and notifies them of the action required. Capital Interest Calculation, Burden Cost Recalculation, and Asset Line Generation are not workflows in Project Financial Management, but processes that perform various calculations and transactions for project costs and assets. https://docs.oracle.com/en/cloud/saas/project-portfolio-management/20c/oapfm/manage-project-financial-management.html#OAPFM2356161