cost center question..pls help

Hi,

thanks for the reply...but what I am looking for is not a change in the standard hierarchy but to replace it...let me try and explain....

there is this alternate hierarchy called "abc" and a standard hierarchy called "Pqr". Now the company is wanting to replace the pqr with abc....i am not sure if there is a transaction available for this....or if you have any idea to do this in a couple of steps. The need is really urgent for the company...if you can tell me if there is any sap notes in OSS which I can refer and run also it would be great...thanks a million for your response..I will await your response...