Occasionally, orders can be locked during a release when they are being updated by other users. If this happens and the status of the wave is NEW, the system displays a message in Wave Release (4.15.8) and you cannot release the wave even if you set Avoid Rel w/o Replen to Yes in Wave Planning Control. Use Wave Unprocessed Orders Inquiry (4.15.4.6) to display the login ID of the user that is locking the order. Once unlocked, you can release the wave.