If an order or schedule line is created manually or automatically in
Production Planning and Detailed Scheduling
(PP/DS), the system determines the priority of the order or schedule line. The order priority is valid for:
An in-house production order for all receipt and requirement elements of the order
An external procurement order for all receipt and requirement elements of the schedule line
To keep things simple, only the term
order
is used from now on.
You can change the order priority as follows:
Manually in the product view
Using the heuristic SAP_PP_012 for
changing order priorities
You use the order priority for specific, priority-dependent sequencing for orders; for example, with DS heuristics or with PP/DS optimization.
An order can have a priority between 0 and 255. The value 1 is the highest priority. The value 255 is the lowest priority you can enter. If a value has not been entered for the priority, or if you enter a zero, this corresponds to priority 256, the lowest priority.
In the planning version, you define in the
PP/DS: Determine Priority
field how the system should determine the priority of an order. You have the following options:
For make-to-order planning from sales order, otherwise from product
If you plan a product with a make-to-order production strategy, the orders inherit the priority of the sales order.
If you plan a product using a make-to-stock production strategy, the orders acquire the priority that you entered in the location product master on the
SNP2
tab page. The priority field on the
PP/DS
tab page is only for display purposes.
Always passed on from requirement
An order always inherits the priority from the requirement for which it was created to cover.
In the case of make-to-order production , the customer requirement passes on its priority across all production levels to all orders that the system creates to cover the dependent requirements and stock transfer requirements.
Since planned independent requirements do not have a priority, orders that the system creates to cover planned independent requirements are not prioritized.
Always passed on from product
An order acquires the priority that you entered for the primary product in the location product master.
Manually created orders always acquire the priority from the product master. Orders you create in PP/DS by converting SNP orders or by converting ATP tree structures do not acquire a priority.
You can change the priority of an order in the product view for the order product on the
Elements
tab page. For a planned order, you have to be in the product view of the primary product. You cannot change the order priority in the product view of the dependent or stock transfer requirements.
The net requirements calculation and dynamic pegging do not take account of order priorities. The system is able to cover a requirement with low priority with a receipt with high priority, which has possibly been created to cover a requirement with high priority. This is of particular relevance to the make-to-stock production levels. You can use the standard heuristic SAP_PP_012 for
changing order priorities
to adjust the priority of an order to the priority of the requirement for which a dynamic pegging relationship exists.
Since the order priority is of particular relevance to planning in SAP APO, the order priorities of procurement proposals, which you create in SAP APO, are not integrated with SAP R/3. In the case of manufacturing orders, only the priorities 1 to 9 are integrated with SAP R/3.