Two different types of status are possible for each Purchase Requisition (PR):
•Planned PR: the order is directly issued from the last calculation of requirements and is deleted before the next MRP calculation,
•Firm PR: the Purchase Requisition order has been confirmed. In this case, it is no longer deleted by the MRP calculation and it has to be converted into a purchase order to the vendor. When it is converted into a purchase order, it can be suppressed (see Purchase Order Maintenance).
The planned purchase requisitions can be individually or automatically converted, up until a conversion deadline, into firm purchase requisitions using the Purchase Requisition conversion function (Purchasing menu).
It is worth noting that firm purchase requisitions can be created directly via the Firm Purchase Requisition Maintenance window (Purchasing menu).
Four different types of status are possible for each Work order (WO):
•Planned Work Order: the order is directly issued from the last calculation of requirements and is deleted during the next MRP calculation. Such planned work orders can be automatically or individually converted, up until a conversion deadline, into firm work orders using the Work Order conversion function (Planning menu).
•Firm Work Order: the work order has been confirmed. In this case,
it is no longer deleted by the MRP calculation and it has to be released. Its
‘in process operations’ are created from the item routing.
It is worth noting
that firm work order can be created directly via the Firm Work Order
Maintenance window (Scheduling menu)
.
•Open Work Order: the order been released. Its components are
reserved in the inventory and inventory issues and production reporting
transactions are possible for such an order.
Such orders can be individually
released, but it is also possible to proceed to an automatic release of all the
firm orders until a release deadline using the Automatic Work Order Release
function (Scheduling menu).
The released order has
successively two intermediate types of status: In process at the first
production report, then Completed when the whole quantity of the order
has been processed.
•Closed Work Order: the order has been completed and entered in inventory. In this case, all the production reporting transactions have been passed.
The planned purchase requisitions orders and the planned work orders are numbered starting from 1 during each new MRP calculation. The firm purchase requisitions or work orders are numbered in sequence when they pass to the firm status. The work orders keep their number when they change status.