Supply Network Planning and PP/DS Scenario 

Purpose

Supply Network Planning is used for long to medium-term planning. One of the main advantages of Supply Network Planning is sourcing, that is, determining where which product will be procured and how. Functions, such as, deployment and transport load building are available to optimize sourcing. Supply Network Planning uses bucket capacity when planning products, which means the finest level at which you can plan is on a daily basis. It is therefore not able to take sequence constraints into account during planning. In order to be able to schedule orders precisely (in hours/minutes/seconds) and to take sequence constraints into account, orders must be planned using Production Planning and Detailed Scheduling (PP/DS).

PP/DS is used for short-term planning. You specify this short-term planning horizon by defining a production horizon. The production horizon is used to separate the planning responsibilities between Supply Network Planning (used outside the production horizon) and PP/DS (used inside the production horizon). More detailed resources and production process models enable a finer level of planning. By converting the orders from Supply Network Planning to PP/DS, you achieve the following.

As soon as at least one activity of an order in Supply Network Planning falls in the production horizon, it will no longer be planned by Supply Network Planning. You convert the orders that are in the production horizon into PP/DS orders. The converted orders are still visible for the supply network planner as aggregated demand but are treated as firmed production and cannot be changed by the supply network planner. During automatic planning, the system only creates receipt elements to cover requirements that lie within the production horizon. You can, however, manually create orders outside the production horizon. These orders are firmed in Supply Network Planning and can only be changed in PP/DS.

Interaction Between Supply Network Planning and PP/DS

Visibility of Planning for Both Supply Network Planner and PP/DS Planner

Supply Network Planning orders and PP/DS orders of the same planning version load the same resources. It is therefore important that the load of a resource is visible to both the supply network planner and the PP/DS planner. It is possible to define resources that allow a bucket approach and a detailed approach, which enables you to use the same resource for Supply Network Planning and PP/DS. If PP/DS creates orders outside the production horizon, the supply network planner can see the resource load as a bucket requirement. There are two forms of mixed resources: the single mixed resource and the multi-mixed resource. These correspond to the single-activity resource and the multi-activity resource respectively. Both forms of the mixed resource calculate the bucket capacity from the resource capacity.

As neither setup nor sequence constraints are taken into account in Supply Network Planning, the theoretically available bucket capacity can be reduced using a loss factor.

Both the PPM for Supply Network Planning and the PPM for PP/DS can use the single-mixed or multi-mixed resource. You can assign a PP/DS PPM to a PPM used in Supply Network Planning to ensure that the correct PPM is used in PP/DS when the orders are converted and re-created.

Prerequisites

See Conversion of SNP Orders into PP/DS Orders.

Process Flow

  1. Requirements that are outside the production horizon are transferred from Demand Planning to Supply Network Planning.

    2. If the requirements lie in the defined production horizon, they are transferred directly to PP/DS when you release the demand plan to Supply Network Planning. For more information, see Transfer of DP Demands to PP/DS.

  2. You plan the products in Supply Network Planning. You can use the following functions:
  1. Once the orders fall into the short-term planning period, defined by the production horizon, you convert them into PP/DS orders.

For more information, see Conversion of SNP Orders into PP/DS Orders.