Customized the approval notification subject or body

Summary:

Has anyone successfully customized the approval notification subject or body for Requisition (PR) and Purchase Order (PO) approvals in Oracle Fusion?

For example, the standard notification subject currently displays:

Approve Requisition 1001/ Approve Purchase Order 2001

We would like to include the Business Unit in the notification, such as:

Approve ABC BU Requisition 1001/ Approve ABC BU Purchase Order 2001

If modifying the notification subject is not supported, is it possible to display the Business Unit name prominently within the notification body instead?

This enhancement would be particularly helpful for approvers who manage multiple Business Units that share the same requisition numbering sequence, making it easier to identify which BU the transaction belongs to directly from the notification.