Suspension of non-catalog requisition after requisition is approved and landed in buyer workbench

Summary:

My customer is UK public health body and have a business process wherein for non-catalog PRs requester does very light touch operation and the heavy lifting is done by Buyer. For example, requester does not need to enter supplier details in non-catalog PR and is all handled by a large team of Buyers.

All non-catalog requisitions lands in buyer workbench, buyers then have to find suitable supplier, price, etc. They will then convert PR to PO, update and issue PO.

We have a requirement for buyers to be able to add notes, attachments, custom status (LOV) in the process requisitions work area. These notes, attachments and status should be visible to the requester if the notes and attachment is categorised as To Receiver or Misc.