CCC - Email/Notification to PO Receipter

Our customer has a requirement regarding notifications following AP invoice approval.
They require that when an AP invoice is approved, an email notification should be sent to the individual who performed the PO receipt.
Currently, invoice approval is configured using the Workflow Rule Spreadsheet (not BPM). We would like to understand whether this requirement can be achieved using standard functionality in this setup.
Could you please advise:

Whether it is possible to trigger a notification to the PO receiver upon invoice approval using the Workflow Rule Spreadsheet?
If not, are there any recommended alternatives or configurations within Oracle Cloud (e.g. BPM or other approaches) to meet this requirement?