We require a user who is only authorized  to create a  purchase  order (buyer) , to be able to edit a signed PR( input supplier and price ) before generating a purchase order.

Each time the user edits the signed PR and click on generate order button, the system will bring up a message, no orders to generate.

We have created the Purchase Order user in workflow user assignment rule as a Requester and also a signatory of Purchase request and the issue still persists.

Please someone assist me with how to make a PO buyer to be able to edit a signed PR and genarate order afterwards.

Thanks