Controlling area OX06

Controlling area is an organizational unit within a company that represents company for cost accounting purpose.
Controlling area can have more then one company code assigned to it, but one company code can have one and only one controlling area. All company codes under same credit control are must have same operative charts of accounts.
IMG --> Controlling --> G/L--> organization --> Maintain controlling area   OX06

Use CoCd --> CO area if your company code is same as the controlling area and you have just one company code in the controlling area otherwise use second option.