Self Service Procurement users unable to see Invoice created for Change Order Lines

Summary:

Our Self Service Procurement users are trying to view Invoices from the Requisition "Lifecycle" page, there, they are only able to see the Invoices created on the PO lines in sync with the Requisition.

Content (required):

Our Self Service Procurement users are trying to view Invoices from the Requisition "Lifecycle" page, there, they are only able to see the Invoices created on the PO lines in sync with the Requisition. If there is a new Change Order line created on the PO (Initiated by Preparer), and an Invoice is created referring to that new Change order line, those invoices are not visible under "Life cycle" page of the Requisitions. They are only available to view when navigating from Procurement--> Purchase Orders menu. As our basic requisition users do not have this PO menu