
We need to edit / update the purchase order template that is produced when print the PO out of D365. Where do we go to do this?
Which Purchase order document are you wanting to edit? There are several documents - PO Confirmation, Purchase Receipt, Purchase Invoice.
With that said and assuming I'm understanding your request, these documents either require a Developer to make the changes to the report, create a new template using Electronic Reporting, or using a third party tool like Docentric to modify these documents.