MFG/PRO 9.0 User Guide Volume 3: Manufacturing - QAD.com

76 MFG/PRO USER GUIDE — MANUFACTURING
MRP does use the order policy and order modifiers for the base process,
except safety stock, when creating planned orders. If the order policy is
not period order quantity (POQ) or fixed order quantity (FOQ), MRP uses
an order policy of POQ. If no order period is specified, MRP uses an
order period of seven days.
When MRP plans a base process, it searches for the first unsatisfied
demand record for a co-product. Then, depending on whether the order
policy is POQ or FOQ, MRP evaluates unsatisfied demand records for all
co-products of the base process:
POQ. MRP searches from the first unsatisfied demand record through
the end of the order period.
FOQ. MRP looks at all unsatisfied demand records for all co-products
that fall on the same date as the first unsatisfied demand record.
MRP creates one or more planned orders to satisfy demand for the
co-product that presents the greatest demand for the base process for a
specific date or date range. As a result, planned orders for the other
co-products of the base process are also created.
Reviewing, Updating, and Reporting Action Messages
MRP creates action messages for base processes and co-products, but not
for by-products. Action Message Review/Update (23.5) and Action
Message Report (23.7) allow reporting of action messages using various
selection criteria, including BOM/Formula code. You can also exclude
action messages for base process orders.
Approving Planned Work Orders
To approve planned work orders, use Planned Work Order Approval
(23.10). Specify base processes by entering a BOM/Formula code range.
This program changes the status on all orders in a joint set from Planned
to Firm. The joint set is not updated based on effectivity dates for the
co-product/by-product structure (as is done when using Work Order
Maintenance or Multiple Work Order Status Change), and work order
detail is not re-created.