Multiple Email ID for PO Communication to Suppliers

We are in 12.1.3. There is a requirement to send  Purchase Order communication to  Mulitple Emails on PO Approval. Meaning while approving the PO, in the Email field, mulitple Email's have to be entered  and PO has  to be sent to Multiple Emails on approval.Tested the same and this is not working.

Gone through the note Doc ID 307577.1 and it says that PO communication with multiple Mail ID’s separated by Commas were supported till 11.5.10 and no longer supported  from 12. Is this still valid. Anyt other suggestion to make this work in 12.1.3.

Thanks in advance for your help.

Jagan