The basic principle of this planning strategy (make-to-stock) is the following:
- Sales orders are filled by warehouse stock
- Planning (planned independent requirements) is possible, to allow for procurement quantities to be planned before sales orders are received
Areas of use: Make-to-stock production strategies are designed for planning the procurement of components (production or purchasing) by planning the finished product. If it is easier for you to plan at component level, you can use planning at assembly level. Choose a make-to-stock production strategy in either of the following situations:
The materials do not have to be stored separately or are assigned to a specific sales order.
The costs have to be visible at material level (that is, not at sales order level).
You use make-to-stock production when you produce stock independently of an order, because you want to supply your customers with goods from this stock later. You may want to produce goods without a sales order if you expect a demand for them in the future. Make-to-stock strategies thus support very close customer-supplier relationships, since their purpose is to supply the customer with goods from stock as quickly as possible. Returns that have been through a quality check as well as other unplanned goods receipts can be used for other sales orders. You can avoid increased warehouse stock in a make-to-stock environment by creating planned independent requirements in advance to plan your stock. If you do this, you can also decide whether sales orders that exceed your plan can influence production. In addition, sales orders should be available at a relatively early stage (for example, using scheduling agreements). Make-to-stock production strategies generally consist of four phases:
Generation of planned independent requirements
Procurement
Receipt of sales order
Goods issue for delivery and reduction of planned independent requirements
Planning with Final Assembly (40)
Planning with final assembly (planning strategy 40) allows you to focus on flexible and fast reaction to customer demand, while also aiming for a production process that is as smooth as possible.
The procurement and production of all components and assemblies including their final assembly should be triggered by planned independent requirements before sales orders arrive.
You set the planned independent requirements for the finished product in Demand Management. Incoming sales orders consume these planned independent requirements.
Planned independent requirements that have not been consumed can – periodically, for example – be set to zero (transaction MD74).
If customer requirements exceed planned independent requirements, the system automatically creates a planned order for the sales order, including the unplanned quantity, in the next MRP run (sales orders that affect requirements).
The availability check can be executed from the sales order.
The consumption of planned independent requirements by customer requirements depends on the consumption mode and the consumption periods.
Planning with Final Assembly (40): Master Data
Maintain the strategy group 40 in the material master (MRP 3) for the finished product.
The settings for the consumption of sales orders and planned independent requirements from the material master are included in this strategy.
In the material master, an MRP group can also be used to assign the consumption to the material. If consumption values are found both directly using the strategy group and indirectly using the MRP group, the values from the strategy group are taken.
Consumption
You can use consumption mode to determine the direction on the time axis in which incoming sales orders are to consume planned independent requirements.
In backward consumption (consumption mode 1), the sales order consumes planned independent requirements from before the customer requirement.
In forward consumption (consumption mode 3), the sales order consumes planned independent requirements from after the customer requirement.
You can combine backward and forward consumption provided that you take the consumption periods into account (consumption modes 2 or 4).
You can define the consumption mode and the consumption periods either in the material master or for each plant and MRP group. If no values have been entered, the system uses the default setting with backward consumption for 999 days.
Hint
If you use mode 1 and do not maintain the backward consumption interval, this means that only the requirements on the current day are consumed.
