What happens when a demand planner approves a demand plan and then adjusts shipment history and runs demand plan again?

A major distributor experiences difficulty in establishing an inventory replenishment methodology. Which segmentation approach is not possible with Replenishment Planning?

During a client implementation, it is determined that an external forecast will need to be imported into Planning Central for use as a Demand Schedule in a Supply Plan.
What three steps must be executed to enable the successful load of the External Forecast file? (Choose three.)

Your Manufacturing Organization makes bicycles and ships 50% of its output directly to large chain retailer customers. Your organization also ships products to your Distribution Center so that it can fulfill many other smaller customers. Your Manufacturing Organizations uses Oracle SCM Planning Cloud, but your Distribution Center does not.
Which setups should you recommend to the Manufacturing Organization?

Your client has high-priority customers with frequent, small volume orders.
Which two steps should a backlog planner consider if a backlog run does not produce the desired results? (Choose two.)