Close PCOs and COs
You can close a PCO when you finish working with the change requests that are attached to it. Typically, you close the PCO when all of the accounts on the attached change requests are at their final stage in the approval process. When you close a PCO, the system closes all of the lines on the attached change requests. After you close a PCO, you cannot make any changes to it.
You can close a CO when you finish working with the PCOs that are attached to it. Typically, you close the CO when you close all of the PCOs that are attached to it. After you close a CO, you cannot make any changes to it.