No req is getting generated with VB

Question

Dear  PP gurus,
I have a finished Production FG01  for which SF01 and SF02  are the assemblies required . In SF01  there is  a raw material RM01
and in SF02  there is another raw material RM02.
In the  MRP views of
RM01 ,:  i have mentioned MRP type VB (consumption based planning)  , lot size (EX)  and  a reorder point  is defined 10 and a safety stock is 5 . At present there isno stock .
when i run MRP  for FG01 ,
there is no requirement  is getting generated for  RM01
whereease if i change the MRP type  to PD  , THE SYSTEM  is giving the requirment
i think i have missed some configuration setting for consumption based planning .
could you please help me ?
Thanks And regards

Answer 1

Hi,
The following method is adopted by the system to caluculate the Net Requirements while MRP run
1) The system then calculates the net requirements. The system compares the available stock at plant level (including safety stock) plus the firmed receipts that have already been planned (purchase orders, production orders, firmed purchase requisitions and so on) with the reorder point. If the sum of the stock plus receipts is less than the reorder point, a
material shortage exists.
2) The system then calculates the procurement quantity according to the lot-sizing procedure defined in the material master.
For reorder point planning, the system supports the Fixed lot size and Replenish up to maximum stock level lot-sizing procedures. You can also use period or optimum lot-sizing procedures for reorder point materials. In this case, you must calculate future requirements using the forecasting functions. The forecast values are then interpreted as requirements.
3) The system then schedules the procurement proposal, that is, the system calculates the dates on which the purchase order has to be sent, or when production has to begin and the date on which the vendor has to deliver the goods or by which  roduction has to have the goods ready.
Pavan