Entering content frameProcess documentationPlanning at Phantom Assembly Level (59) Locate the document in its SAP Library structure

Purpose

This strategy can be used for a set of components that have the following features:

Prerequisites

You must maintain the master data of the phantom assembly as follows:

You also must set the Backflush field to 1 (2 may also be possible) on the MRP screen of the material masters for the components of the phantom assembly.

Backflushing is essential because the components are planned with only one planned independent requirement which can only be planned correctly if all reservations are reduced at the same time. This is only possible when the goods issue for the components is posted at a later stage as in backflushing. In addition, all components of the phantom structure have to be linked to the same operation.

BOMs must be maintained for the finished products and for the phantom assembly.

Process Flow

This graphic is explained in the accompanying text

For a detailed example of the entire process, see Sample Scenario: Strategy 59.

This strategy should be used in the following business context:

  1. Component requirements can be planned relatively effectively. Procurement (planned by means of planned independent requirements) is therefore triggered before the production order stage.
  2. Smoothing procurement according to order demand is possible. In this strategy, however, the ability to react flexibly to customer requirements is more important.
  3. An accurate availability check is performed according to ATP logic during production order processing. An availability check at component level is possible in the production order. See Availability Check.
  4. Requirements from production orders (or schedule lines) are passed on to production and can lead to changes being made to procurement after the sales order stage, if the order quantities exceed the planned independent requirement quantities.
  5. The planned independent requirements are consumed during the production stage. This means that you can compare the planned independent requirements situation with the actual order requirements.

In contrast to strategy 70, however, stock does not exist for the assembly in strategy 59, due to its ‘phantom’ nature.

Leaving content frame