Explanation
Ref: Implementing-Project-Financial-Management-and-Grants-Management.pdf (19A Part # F11256-01) Chapter 3 - Define Project Organizations Topic - Set Assignments and Project Data - How They Work Together (Page 29) Business Unit as Set Determinant Business units enable you to control andreport on financial transactions, usually for specific geographical entities within the enterprise. For project management purposes, assign the Project Accounting business function to the business unit.
Business unit is a set determinant for theproject-related reference data objects described in the following table.
Ref Data Object
Entities
Project Accounting Definition
Project Types
Project Rates
Project rate schedules
Project Unit as Set Determinant
Use project units to enforceconsistent project management practices across your enterprise. Project unit is a set determinant for the reference data objects described in the following table.
Ref Data Object
Entities
Project Definition
Class codes, financial plan types, projectplan types and project roles
Project Transaction Types
Expenditure types and work types
You can only select class codes, plan types, roles, expenditure types and work types that are assigned to the same set as the project unit. To enable expenditure types and work types for use on projects owned by a project unit, assign the set associated with the Project Transaction Types reference data object to those entities

Explanation
Ref:https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19b/oapfm/project-billing-configuration

Explanation
Reference: https://docs.oracle.com/cloud/latest/projectcs_gs/OAPFM/OAPFM1125357.htm#OAPFM1125357 Assignment of Supporting References Supporting references may be used to capture transactionvalues on journal entry lines. A supporting reference can be used on a journal entry rule set only if it's assigned a source from the event class of the journal entry rule set.
Creating Supporting References: Explained
Supporting references are used to store additional source information about a subledger journal entry at the line level.
Supporting references with balances establish subledger balances for a particular source and account for a particular combination of supporting references plus the accountcombination.
For example:
* If a journal line contains a supporting reference that includes two sources, Customer Type and Customer Name.
* Balances are created for the account combination, plus customer name and customer type.
Examples of how you may want touse supporting reference balances are to:
* Facilitate reconciliation back to the subledgers and source systems by tagging journal entries with transaction and reference attributes.
* Create balances by dimensions not captured in the chart of accounts.
* Reporting using dimensions not captured in the chart of accounts.
* Enrich Oracle Fusion Business Intelligence Applications reporting on subledger journals.
* Profit and loss balances by dimensions not captured in the chart of accounts Define supporting referencesto hold additional supporting information for detailed account balancemaintenance or reconciliation and reporting requirements.

Explanation
Ref:https://docs.oracle.com/en/cloud/saas/project-portfolio-management/19b/oapfm/project-costing-configuratio Topic - Deriving Projects-Related Accounts