I am really intrigued by the design of the PO attachment functionality in D365 SCM. When we have a confirmed PO Approval Status and Open Order as Purchase order status, the attachments are grayed out, but when we have a PO in confirmed (approval status) and received (PO order status) state, it is available for attaching documents. It is beyond my understanding why anyone would design such a functionality.
Again, when invoiced, it is grayed out. Any idea why it allows attachment at the confirmed and received stage?