1. Adobe Workfront Documentation
"Overview of Task Constraints": This document explains that the "Must Start On" (MSO) constraint forces a task to begin on the specified date. This directly supports the use of this constraint for the September 23 start requirement. (See section: "Must Start On").
2. Adobe Workfront Documentation
"Overview of Planned Hours": This source defines Planned Hours as "the amount of time you estimate it will take to complete a work item." This confirms that the 10 hours of work effort should be entered in the Planned Hours field. (See section: "How Workfront uses Planned Hours").
3. Adobe Workfront Documentation
"Duration and Duration Type overview": This article clarifies the distinction between Duration and Planned Hours. It states
"Duration is the amount of time (in business days) that it will take for a work item to be completed
from the start date to the completion date." This validates setting the Duration to 2 weeks to represent the total time span. (See section: "Understanding the difference between Duration and Planned Hours").