PP Planning Procedures 
Definition
Setting in the location product master that:
· Determines the Production Planning and Detailed Scheduling (PP/DS) reactions to planning-relevant events
· Determines the pegging-relevant quantity of customer requirements across all applications
Use
Determining the reactions to planning-relevant events
This usage is specific to PP/DS. In the PP planning procedure, for each planning-relevant event that can occur for a location product, you specify which action Production Planning and Detailed Scheduling (PP/DS) should automatically execute when this event occurs. A planning-relevant event is, for example, a goods movement for a product in an OLTP system or a change to the product master in the SAP APO system. As possible actions, PP/DS can, for example, immediately call the product heuristic or create a planning file entry for the product.
SAP delivers standard planning procedures that it recommends you to use in certain scenarios. However, you can also define your own planning procedures. You should reconcile these carefully with your planning processes, because only certain event-action combinations can be used effectively within a planning procedure.
To be able to plan a product using PP/DS, you must have entered a planning procedure in the location product master. You define planning procedures in Customizing for Production Planning and Detailed Scheduling (PP/DS).
Determining the pegging-relevant quantity for customer requirements
You define in the planning procedure whether the desired quantity or the confirmed quantity of customer requirements is relevant for pegging. This setting is relevant for all planning applications in SAP APO.
For more information, see 
Structure
The PP planning procedure contains the following elements:
· Planning-relevant event
SAP provides a selection of events that are typical in production planning. The events can be divided into the following groups:
¡ Changing master data in the SAP APO system (such as product, plan, or transportation lane)
¡ Changing stock in the OLTP system
¡ Creating or changing requirements elements of orders (customer requirements, planned independent requirements, dependent requirements, and stock transport requirements) in PP/DS or in the OLTP system
¡ Creating or changing receipt elements for in-house production orders or external procurement orders in PP/DS or in the OLTP system
· Action
If an event occurs, PP/DS automatically executes the action that you specified in the planning procedure for the event. The following actions are available:
¡ Do nothing
¡ Cover dependent and stock transfer requirements
There are three different actions that PP/DS uses to react to dependent or stock transfer requirements being created or changed for a product. PP/DS tries to cover a new or changed dependent or stock transfer requirement by - depending on the action - using existing receipts, creating new receipts, or rescheduling the superordinate pegged requirement.
¡ Start product heuristic immediately
PP/DS schedules the product immediately with the product heuristic defined for the product.
¡ Create planning file entry
PP/DS creates a planning file entry for the product. You can use net change planning to plan products with planning file entries. The advantage of planning in the production planning run is that you can control when and how often products are planned. To avoid overloading the system performance, you can execute the production planning runs at night, for example.
PP/DS only executes an action if you have set the PP/DS: net change planning active indicator in the planning version. It is only then that you can use the planning version for PP/DS.
· Reuse Mode
The reuse mode is relevant to the actions Create Planning File Entry and Start Product Heuristic Immediately. The reuse mode determines how a procurement planning heuristic processes existing procurement proposals. SAP has configured a fixed reuse mode is configured for each event-action combination. For more information, see Reuse Mode for the Planning File Entry.
Scheduling status
You can specify which scheduling status an in-house production order is given,
¡ If a receipt element from an in-house production order is created in PP/DS or in an OLTP system
¡ If a quantity-related or product-related change is executed for a receipt element from an in-house production order
PP planning procedure in an integrated system landscape
For planning-relevant events, a distinction is made between events that occur in an OLTP system and events that occur in PP/DS. PP/DS may react differently to planning-relevant changes that were originally made in an OLTP system and were transferred to the SAP APO system, than to changes that were originally made in PP/DS. Since integration means that an event in the SAP APO system is often linked to a corresponding event from the OLTP system (and the opposite), you must take your planning procedure into consideration when you decide to which event PP/DS should react. You should try to avoid a situation where PP/DS reacts to a planning-relevant change several times or in different ways.
· For example, you manage customer requirements for critical products that you are planning in SAP APO in an OLTP system, and then transfer them to the SAP APO system. PP/DS can react to new or changed customer requirements by executing the product heuristic planning shortage quantities, for example. The product heuristic can create a planned order for the product. This triggers events in PP/DS for the creation of receipt and requirements elements of the planned order, to which PP/DS, in turn, must react. The subsequent transfer of the planned order to the OLTP system causes corresponding events for the creation of receipt and requirements elements in the OLTP system. These events are based on the same planning-relevant changes to which PP/DS has already reacted. You should therefore specify that PP/DS should not execute any actions for the events creating or changing a planned order in an OLTP system, creating or changing dependent requirements in an OLTP system, and creating or changing stock transport requirements in an OLTP system.
· Changes to manufacturing orders in the OLTP system can result in changed reservations, to which PP/DS must react by adjusting the relevant receipt elements. You should therefore set an action in the planning procedure for the corresponding event (change a manufacturing order in the OLTP system, change a dependent reservation in the OLTP system) such as, for example, create planning file entry.
See also
SAP note 439596
No comments:
Post a Comment