Substitution of closed segments of the chart of accounts

Hello,

We have a rather sensitive business process problem where we need your assistance,

Use case: COA Segment was closed (a team f.e.) and we need to substitute it with a new one in all active Purchase Orders, Multiperiod Invoices, Fixed Assets etc.
Our request: We are looking for any automatic tool / solution / engine from the Oracle ERP side which we can use for this purpose. 

Our business stakeholders believe that there should be an automatic solution instead of manual changes. 

Do you know any tool / solution / engine from the Oracle ERP side which we can use for this purpose?