Reference https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19b/oapfm/define-project-organizations.html#OAPFM177674 Settings That Affect Performance Data Summarization You can summarize performance data for a project unit, business unit, a range of projects, or projects managed by a project manager. When you run the Update Project Performance Data process from the Scheduled Processes page, select one of the summarization methods from the following table:
Summarization Method
Usage
Incremental
Summarizes new transactions that are yet to be summarized
Delete and re-summarize
Correct summary data when the source system data changes outside the regular transaction flow.
Do not use this summarization method when you run the Update Project Performance Data Without Producing Report process unless you are advised to do so.
Resource breakdown structure
Migrate all summary data from one resource breakdown structure version to the next.
If you select this option, you must also specify the resource breakdown structure header.