SAP Message CC201 - System status: the change to this object is already complete

Diagnosis
The object change using the selected change number is completed. In thechange master record the object management record status has been setto Change completed.

System Response
The system does not allow you to change the object with reference tothis change number.

Procedure
However, if you still want to change the object with reference to thischange number, proceed as follows:
RESET N1
Set the object management record status to Error in change inthe change order.
If necessary, contact somebody who has authorization to set this statusin the change order. Setting this status results in you being able toprocess this object with reference to the change master record onceagain.
Make the necessary changes to the object.
Set the object management record status to Error corrected inthe change order.