Dear,
Is the description of the two functional locations is same ? system will not allow you to create f/l with same label.
You should get an error message as if same label is being created.
Label XX-XX-XXXX is already being used in labeling system Standard indicator (internal)
Message no. IL512
If it is only description of the f/l lable you can change it.
Are you using any labeling system in your company?
Regards,
Pardhu