SNP Aggregation 

Use

You can use this function after aggregated planning in Supply Network Planning (SNP) and subsequent SNP disaggregation to aggregate the created stock transfers and planned orders back to header level. This is useful if you want to make changes for specific location products at header level, for example. Afterward, you perform disaggregation again.

This function can be used for SNP planned orders and stock transfers. However, it cannot be used for stock transfers and planned orders of type Subcontracting, scheduling agreement delivery schedule lines, or SNP product substitution orders.

Features

Aggregation Procedures

Depending on whether the orders have an order group number or not, the system applies the following aggregation procedures:

·        Orders with order group number

The system pools the orders according to their order groups and aggregates all suborders of an order group to one header order of the same order group. The prerequisite is that you have defined the use of order groups in Customizing for SNP (see Prerequisites for Aggregated Planning). The order group number for the orders is displayed in the detail view of interactive planning.

·        Orders without order group number

If the orders do not have an order group number (because you have specified in Customizing that you are not using order groups or the orders in question were not created by SNP), the system pools them according to period and source of supply.

After aggregation, you can change the header order and use SNP disaggregation to disaggregate the changes back to the suborders. If you want to ensure that the system again considers the reference created by the order group during disaggregation as well, choose the order-oriented disaggregation mode. If you have carried out aggregation according to periods and sources of supply, you can create the parallelism by choosing period-based (bucket-oriented) disaggregation. For more information about disaggregation modes, see SNP Disaggregation.

During aggregation, the system considers the lot sizes defined for the header location product, as long as they do not inhibit aggregation. Otherwise, the system ignores the lot sizes. This is the case, for example, if the quantity at sublevel is 180, but the lot size at header level is 100.

Scope of Planning

You can execute location or network aggregation:

·        Network aggregation: The system aggregates the orders for the selected products in all locations of the distribution network in which the products exist. The processing sequence is based on the logic used in the SNP network heuristic.

·        Location aggregation: The system only aggregates the orders for the selected products in the selected locations.

To make specific changes, for example, you can even apply aggregation on just one specific header location product.

Aggregation Timeframe

You can define a special aggregation horizon, meaning a timeframe in which the system reads the aggregated orders at sub product level and creates the aggregated orders at header product level. The horizon commences on the aggregation start date.

You can also specify a time offset. Then the horizon begins after this offset, calculated from the start date.

The system does not consider any other horizons, such as the SNP production horizon or the SNP stock transfer horizon.

Delete Orders at Sublevel

You can define what the system is to do after aggregation with the orders at sublevel: delete them or not change them. The default setting is delete. If you specify that you do not want the system to change the orders, it will copy them during aggregation. You should only use this setting for simulation purposes because the order quantities and the resource consumption are doubled.

The system deletes the orders in the aggregation horizon.

Log

If you run SNP aggregation in the background, the system generates an application log. It contains, among other things, detailed information about the aggregated planned orders and stock transfers. For more information, see Application Logs.

Activities

You can execute SNP aggregation in both interactive Supply Network Planning and as a background job. To execute it in interactive planning, select  Loc.Agg. for location aggregation or  Netw.Agg. for network aggregation in planning book 9ASNPAGGR and data view SNPAGGR(1). To make the settings, choose  with quick info Init.Screen for (Dis-)Aggr.

To execute it in the background, from the SAP Easy Access screen, choose Supply Network Planning → Planning → Supply Network Planning in the Background → SNP Aggregation.