How Strategy 40 - Planning with Final Assembly Works

40： MTS ; normally , it is for standard parts .

Strategy 40 :-

1. Stocks on hand reduces the PIR during MRP run. 
e.g. if stock is 100 and PIR is 100, MRP run will not prompt 100 forprocurement. if stock is 0 and PIR is 100, MRP run will prompt 100 forprocurement.

2. Sales order creation reduces the PIR.
e.g. if PIR is 100, sales order 90, PIR becomes 10(withdrawal 90).

3. Delivery reduces the Sales Order.

Planned independent requirements are consumed by incoming sales ordersso that the master plan is always adjusted to suit the current requirementssituation. 
You must maintain the following master data for the finished productin the material master:

Strategy group 40 on the MRP screen. 
- Consumption parameters (Consumption mode, Bwd consumption, Fwd consumption)to allow consumption of independent requirements. If no consumption parametersare maintained in the material master, the system uses default values aretaken from the MRP group. 
- To control consumption, you maintain a consumption mode as well asa consumption period. 

Item category group (for example, NORM) on the Sales Organization Datascreen.

Four important points :-

1. Planned independent requirements are used to trigger the procurementand production of the necessary assemblies and components before receiptof the sales orders. 

2. As soon as the sales order is received, it consumes the planned independentrequirements. 

3. An ATP (available to promise) logic during sales order processingwill checks whether sufficient planned independent requirements have beenplanned to cover the sales order. 

4. Requirements from the sales orders are passed on to production andcan lead to changes made to procurement if the requirements from the salesorders exceed the planned ndependent requirement quantities. If there isinsufficient coverage of components (the sales order quantities exceedthe planned independent requirement quantities), the sales orders cannotbe confirmed. The system therefore automatically adjusts the master plan.Planned independent requirement quantities that are left unconsumed increasethe warehouse stock of the finished product.

SAP MRP strategy group 策略组探讨