SAP Message SB321 - You can cancel the copied changes

Diagnosis You have chosen to cancel changes. System Response Checks to see whether the copied changes can be canceled for thisobject. Procedure If you select this object, the SAP System resets this object to theversion it had before the last changes were copied. If you made anymanual changes after the last changes were copied, they will be lost.The object remains unchanged if you do not select it.