Changing Profit Center in MM Master Data

Dear Experts,

I want to change the profit center in Material Master for materials which already have valuated stock in place and Purchase orders as well. When I change it, it does not give any errors in MM02, however im not sure if it impacts open PO's and accounting.

What is the process to do so properly so that there are no inconsistencies in the acoounting data. Also is there a SAP NOTE which guides towards the proper process for doing so ?

Thanks in advance.