You cannot deselect using the HCM Position Hierarchy because the line manager is synchronized from the position hierarchy. (PER-1531935)
You cannot synchronize the manager from the HCM Position Hierarchy because this hierarchy type is not enabled for the enterprise. (PER-1531932)
· Under the “Position Synchronization Configuration” section
· In the manager filed select “Use position manager” instead of “Use HCM position hierarchy”
I hope this blog post was helpful for you. If you have any questions or feedback, please leave a comment below.