REST web service to assign Task Resource Assignments

Summary:

Which REST web service should be used to create a Resource Assignment against a Task under Financial Project Plan

Content (required):

As pictured below, we'd like to use REST web services to create resource assignments against a Project Task under Financial Project Plan

We have come across two REST web services under documentation "REST API for Oracle Project Portfolio Management Cloud" for 22B:

1) Project Plans --> Task Expense Resource Assignments --> Create an expense resource assignment for a task

/fscmRestApi/resources/11.13.18.05/projectPlans/{ProjectId}/child/TaskExpenseResourceAssignments

2) Projects --> Tasks --> Expense Resource Assignments --> Create an expense resource assignment for a project task