In this scenario, a Purchase Requisition is raised through a Maintenance Material Requisition. The WO is project connected. The PR is processed and a PO is created. Without receiving the parts the PO has been cancelled. When cancelling the PO, it was decided not to reopen the PR.

Then in Maintenance Material Requisition, Only Manual Pegging is active and it is not possible to Reserve any material even though in the line Available Qty is positive. Since the line is connected to the PO which was cancelled earlier, the system does not remove the reference. That line can no longer processed further. If the system removes the PO ref from the line when the PO is cancelled then there will be no connection between the WO, PR and PO.

If it is required to reserve material, another new line can be entered and it needs to be further processed.