Reference:
Topic - FAQs for Define Project Enterprise Labor Resources
What's the processing order of project enterprise labor resource maintenance conditions?
Records are processed by the Maintain Project Enterprise Labor Resources process in ascending order based on the process order value that you specify on the Create Condition page. For example, assume that an HCM person is included in a condition with a process order value of 1. If a resource doesn't already exist for that person, then the process creates a resource for the condition with the process order value of 1. The process doesn't create more than one resource for the same person even if subsequent conditions apply to the person.
If multiple conditions have the same process order value, then records are processed in ascending alphabetic order based on the condition name.

The expenditure type class that is recommended for the expenditure types that need to be defined for work order labor and equipment resource transactions is Work In Process. This class indicates that the transactions are related to work orders that are performed as part of a project-driven supply chain solution. This class also allows the transactions to be processed by Oracle Fusion Manufacturing applications and transferred to Oracle Fusion Project Costing applications. Supplier Invoice is not a valid expenditure type class for work order labor and equipment resource transactions. This class indicates that the transactions are related to supplier invoices that are entered in Oracle Fusion Payables applications and transferred to Oracle Fusion Project Costing applications. Usages is not a valid expenditure type class for work order labor and equipment resource transactions. This class indicates that the transactions are related to material usages that are entered in Oracle Fusion Inventory Management applications and transferred to Oracle Fusion Project Costing applications. Inventory is not a valid expenditure type class for work order labor and equipment resource transactions. This class indicates that the transactions are related to inventory movements that are entered in Oracle Fusion Inventory Management applications and transferred to Oracle Fusion Project Costing applications. Reference: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/20c/oapfm/manage-project-costs.html#OAPFM2356311

To put in a validation process that allows only a certain number of maximum hours an employee can charge in a day, and a minimum of hours he or she can report in a week, you need to use time entry rules. Time entry rules allow you to define the conditions and actions for validating time entries based on various attributes such as hours, dates, projects, tasks, etc. You can also specify the error messages and severity levels for the time entry rules. Reference: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/20c/oapfm/manage-project-time-and-labor.html#OAPFM2355991

Project type is a classification that defines the common attributes and processing options for projects. Some of the correct statements about project type are:
Project type can be used as a source in subledger accounting. This allows you to create accounting rules based on the project type attribute.
Summarization options can be specified at project type. This allows you to control how the project transactions are summarized for reporting and performance purposes.
Project type can be associated with multiple project units. This allows you to share the same project type across different business units or organizations. Project type cannot be enabled for both billing and capitalization, as these are mutually exclusive options. Classifications cannot be assigned at project type, but at project or task level. Reference: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/20c/oapfm/set-up-project-financial-management.html#OAPFM2355971

To handle a custom spread on budgets and forecasts, you can either create a new spread curve or edit an existing one to match the desired spread points. Then, you can attach the spread curve to a project template or a resource class, depending on whether you want to apply it to all projects using that template or all transactions using that resource class. Reference: https://docs.oracle.com/en/cloud/saas/project-portfolio-management/20c/oapfm/define-project-budgets-and-forecasts.html#OAPFM2355819