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.

• as a missing parts list for the planned order (Availability check: Overview)

• as either a missing parts list or a missing parts overview for the production order

For more information, please refer to the following sections:

The following settings must be maintained for this type of check:

• checking group

• checking rule

The system determines the scope of the availability check (that is, the receipts, issues and stocks that are to be included in the availability check) depending on the combination of the checking group and the checking rule. The checking rule and group also define further criteria for controlling the check according to ATP logic.

For the component check in assembly processing, the system determines the scope of the availability check using:

• the checking group defined in the material master record of the component and

• the checking rule defined in Customizing for MRP for the plant or the checking rule defined in Customizing for Production Orders per order type/status.