Entering content frameFunction documentation Checking the Availability of Material Locate the document in its SAP Library structure

Use

Before you start production, you have the option of checking whether all the material components production resources and tools (PRTs) assigned to a production order are available on the calculated requirements dates.

Features

In a production order, the system can only check a material component, if it is

Availability checks can be triggered either automatically or manually:

The checking scope is defined via the Checking Group (in the material master) and the valid Checking Rule (in Customizing).

This graphic is explained in the accompanying text

They define:

In Customizing (checking control) you specify which quantity is used to check the availability of a material. You can choose between the following:

In the check against planned independent requirements, the system only checks the open planned independent requirement quantities created for the components. This means that the ATP quantity is not included in this availability check nor are receipts or stocks.

This type of availability check is most useful:

The system uses the open planned independent requirements quantity at component level to determine a committed quantity and this quantity is copied to the planned order header in the Committed quantity field. As opposed to the availability check according to ATP logic, however, the committed quantity is not recorded in the dependent requirements. The planned independent requirements of the components are not consumed by the committed quantity but by the complete dependent requirements quantity. In availability checks that follow, the system can only commit quantities for the amount of planned independent requirements that have not yet been consumed.

In the availability check against planned independent requirements, the following dates/quantities are not calculated:

In the check according to ATP logic, the system checks whether the dependent requirements of each component are covered by specific receipt and issue elements or by stock. This check is carried out dynamically, that is, each time you carry out the check, the system recalculates the current situation. If a quantity can be committed for the requirement date, the system enters precisely this quantity as the committed quantity in the dependent requirements and the ATP quantity for the components is reduced by the committed quantity. Therefore, in the next availability check, dependent requirements can only be committed for the amount of the remaining ATP quantity.

 

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