SAP_PP_019 Creation of Fixed Pegging Relationships 

Use

You can use this heuristic, which is based on the algorithm /SAPAPO/HEU_PEG_FIX_CREATE, to create fixed pegging relationships between requirements and receipt elements. This heuristic is a product heuristic.

Integration

You can use the BAdI /SAPAPO/RRP_FIXPEG to modify the heuristic settings, such as the pegging horizon, to suit the requirements of your customer. See also: BAdI: Enhance Heuristics for Fixed Pegging

Features

·        To execute the heuristic on a single-level basis, you specify the location products for which the system should created fixed pegging relationships, in the planning run.

·        However, you can also execute the heuristic on a multi-level basis by including it in an MRP run. In this way you can represent the material flow across all low-level codes. The fixed pegging relationships are then created starting with the independent requirements. The result is a pegging structure.

·        You define how the system proceeds when creating the fixed pegging relationships in the heuristic settings in Customizing for PP/DS under Heuristics → Maintain Heuristics.

·        Fixed pegging relationships between receipt and requirement elements are created according to the assignment strategies delivered in the standard system. However, these assignment strategies cannot guarantee an exact quantity assignment.

For two requirements of 100 pieces each there are two receipt elements, one of 100 pieces and one of 70 pieces, with the same date. When fixed pegging relationships between the receipt and requirement elements are created, an assignment on the basis of equal quantities (requirement of 100 pieces is assigned to a receipt of 100 pieces) cannot be guaranteed. The system may carry out an assignment of 100 to 70/30 and 70 to 70.

You can use the method AFTER_NETTING in the BAdI /SAPAPO/RRP_FIXPEG Enhance Heuristics for Fixed Pegging to adjust the pegging relationships generated according to the assignment strategy to suit your customer’s requirements.

Activities

The heuristic consists of the following processing steps:

       1.      The system selects the pegging area of the specified product.

       2.      The system determines the pegging horizon according to the heuristic settings.

       3.      The system creates fixed pegging relationships according to the method specified in the Heuristic Settings.

¡        If you have selected dynamic pegging, the system creates fixed pegging relationships for the existing dynamic pegging relationships in the pegging horizon.

¡        If you have selected the option batches, the requirement and receipt elements that have the same batch number and that lie within the pegging horizon, are linked via fixed pegging. The receipts are sorted according to the availability date. The requirements are sorted according to the requirement date, in other words, the sequence in which the requirement elements are assigned to the existing stocks and receipt elements is dependent on the requirements date. The system creates the fixed pegging relationships taking into account the assignment strategy Timely Receipts.

¡        If you have selected user-defined settings, you must define the criteria in the heuristic settings that the system should use to create fixed pegging relationships:

§         If you want to create pegging relationships on the basis of inheritance of independent requirement information, set the indicator Pass On Independent Requirements Information. However, it only makes sense to select this option if you are executing the heuristic on a multi-level basis.

§         The system selects the requirement and receipt elements according to the filter that you have defined. You can use the indicator Confirmed Requirements Only to further limit the filtered requirements.

§         The requirements are then sorted according to sort profile specified in the heuristic settings, in other words, they are sorted into a sequence that tells the system in which order the requirements should be assigned to the available receipt elements or to the stock. In the standard delivery, the sort profile SAP_FIXED_PEGGING is available. However, you can also define your own sort profile. If you do not specify a sort profile, the system sorts the requirements according to requirement date.

§         The requirements are assigned to the receipt elements according to the assignment strategy specified in the heuristic settings.

       4.      The system updates the fixed pegging relationships in the liveCache.

Example

Creating Multi-Level Fixed Pegging Relationships Manually