To create procurement proposals with consideration of shelf life conditions for uncovered product requirements, you use heuristics based on the /SAPAPO/HEU_PLAN_STANDARDLOTS algorithm for
planning standard lots
; for example, the standard heuristics SAP_PP_002 and SAP_PP_SL001.
In a planning process that considers shelf life conditions, you can use the heuristic for
planning standard lots
as follows:
You can execute the heuristic using an infinite detailed scheduling strategy. To solve planning problems that have resulted from infinite scheduling, you execute a PP/DS optimization after the heuristic.
You can execute the heuristic using a finite detailed scheduling strategy. You then solve planning problems using the detailed scheduling planning board and push production.
You set the
Plng w/ shelf life
indicator in the product master
To enable the heuristic to consider the shelf life conditions, you must have set the
planning with shelf life
indicator in the heuristic settings. SAP provides the standard heuristic SAP_PP_SL001 for
planning with standard lots with shelf life
with the indicator set.
The planning process is the same as with planning without shelf life. The following table shows the special features during planning with shelf life conditions for each planning step.
Planning step |
Features when planning with shelf life conditions |
|
|
Procurement quantity calculation |
You must have adjusted the parameters relevant to the procurement quantity calculation in the location product master to the shelf life conditions. The following parameters must be smaller than the shelf life of a receipt:
If these parameters are larger than the shelf life, the heuristic creates a warning in the planning log. Whether the heuristic can actually schedule a planned order in the desired lot size without violating the shelf life conditions depends on the resource availability and the detailed scheduling strategy (see below). |
Source of supply determination ( PPM and mode selection ) |
The heuristic selects the production process model and the modes that lead to an availability date that is as late as possible without violating the shelf life conditions, for a planned order to be recreated. |
Detailed Scheduling |
|
Reuse |
The heuristic always carries out planning again; that is, it always creates new procurement proposals, without reusing existing, unfirmed procurement proposals. Therefore the heuristic uses the
reuse mode
|