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

MATERIAL REQUIREMENTS PLANNING 253
You can use Selective Materials Plan to plan master schedule items
separately from other items, or to plan small groups of items by using
buyer/planner, product line, group, type, supplier, or any combination of
these, as selection criteria.
Set MRP Items to Yes to generate planned orders for items at the specified
sites and gross requirements for DRP items. Set DRP items to Yes to
generate intersite requests for DRP items.
Selective MRP recalculates demand and plans supply only for selected
items, passing down gross requirements to the next non-selected level, but
not replanning orders. It does not implode product structures to replan
higher-level items before planning selected items, nor does it explode
resulting orders to calculate component demand.
Reviewing MRP Output
The primary outputs of MRP are planned orders and action messages.
These are generated if MRP sees an imbalance of supply and demand.
• If supply exceeds demand, MRP automatically reschedules or cancels
planned orders and generates messages suggesting you de-expedite or
cancel open orders.
• If demand exceeds supply, MRP reschedules or creates planned
orders and generates messages suggesting you expedite or create
orders.
Action Messages
MRP generates action messages for all items with non-blank order
policies. Action messages recommend the actions a planner should take to
balance supply with demand, such as rescheduling, canceling, or releasing
orders.
Review action messages using Action Message Review/Update (23.5). Or
use Action Message Report (23.7) to review messages by item, site,
buyer/planner, Pur/Mfg code, or action message number.
Table 12.4 lists the messages generated by MRP with a brief explanation.
In the explanation, a supply order can be a work order, purchase order,
repetitive schedule, or intersite request.
Ï See User Guide
Volume 5:
Supply Chain
Management.