Worker Assignment.Current Row

Summary:

Want to understand the difference between Worker Assignment and WorkerAssignment.Current Row

We were under the impression that WorkerAssignment.CurrentRow refers to the proposed value in the field however it seems that this is the same as Worker Assignment. The rule will through an error if Attribute Date 1 (Secondment Projected End Date) is null when changing an employee's assignment status to Secondment through Change Assignment/Person Management.

My understanding is:

existing assignment = current assignment (what is already in the system)

current row = similar to worker assignment (what is proposed) but by effective date??

worker assignment = proposed value in the field