ATP Check in Order
Use
In the active planning version 000 in Production Planning and Detailed Scheduling (PP/DS), you can execute an ATP check for the following orders:
● In-house production orders
For an in-house production order (planned order or manufacturing order) the system checks the quantities in which the order components planned in SAP APO are available. Using the component quantities confirmed on the requirements dates, the ATP check can execute a correlation calculation to derive a confirmed quantity for each order product. This is the quantity of the order product that the order can actually make available, based on the availability of the components on the order availability date. You can only execute an ATP check for an in-house production order if the order is not yet released.
● Stock transport requisitions
In the case of a stock transport requisition, the system checks for each order item the quantity in which the product to be transferred, which is planned in SAP APO, can be confirmed at the source location.
You cannot use the ATP check for subcontracting.
In the ATP check, the system checks if it is possible to deliver the complete order on the availability date. You cannot split the order into available partial quantities. All components planned in SAP APO or products to be transferred are always checked. It is not possible to perform a specific ATP check for individual components or individual items.
You can use the product
availability check and the
check against the
forecast for the ATP check.
The following
check methods from the
global availability
check (Global ATP) are not available for the ATP check in the
in-house production order or in the stock transport requisition.
●
Rules-based
availability check
Prerequisites
● You have entered a check mode and an ATP group in the location product master of the products whose availability you want to check.
If you want to exclude a product from the check:
○ Do not enter a check mode in the location product master, or
○ Specify in the check instructions that no check method should be executed
● You have specified business events for the ATP check in PP/DS, in Customizing for Production Planning and Detailed Scheduling (PP/DS) under Maintain Global Parameters and Defaults. You can use various business events to control the ATP check, depending on which order type is being checked and depending on if the ATP check occurs within or outside a conversion check. You define business events in Customizing for Global Available-to-Promise (Global ATP) under Maintain Business Events.
For more information, see the documentation for Global Available-to-Promise (Global ATP).
Features
Distributed BOMs
For a distributed BOM, you plan some of the components for a product - the critical components - in the SAP APO system using PP/DS. You plan the remaining, uncritical components in the OLTP system. If you use the ATP check in PP/DS, the system only checks the components that are planned in SAP APO and that are relevant for ATP (see Prerequisites); You should therefore plan all the BOM components that are relevant for the check in the SAP APO system. (You should perform the ATP check for distributed BOMs either only in SAP APO or only in the OLTP system.)
ATP check in PP/DS interactive planning
Before calling the ATP check, you must first save the planning, for example, after you have created an order that you want to check. The ATP time series are only updated accordingly when you save. After the ATP check, the system displays the check results for the checked orders for which not all components or stock transfer requirements could be fully confirmed. If you save the planning after the check, the system saves the ATP data and updates the ATP time series for the components or the products to be transferred.
Sequence when checking several orders
When several orders are checked, the sequence in which the orders are checked determines the confirmation results. If, for example, the orders require the same components, which have restricted availability, the component is confirmed in full for the orders that are checked first, and no more components are available for the order checked last. By default, the system checks the orders in a predefined system-internal sequence. You can specify a sequence using a sort profile that you enter in Customizing for Production Planning and Detailed Scheduling under Maintain Global Parameters and Defaults You can only use a PP/DS-specific selection of fields for the sort order. For more information, see the IMG for Production Planning and Detailed Scheduling under ATP Check in Order → Maintain Sort Profiles.
Desired quantities, desired dates and confirmed dates
The desired quantities are the requirement quantities of the components or the products to be transferred, and the desired dates are the requirements dates. For continuously consumed components, the system assumes that the total component quantity is required at the earliest requirements date, that is, at the start date for consumption. The desired quantity of an order or an order item is the order quantity or the item quantity, and the desired date is the availability date. The ATP check checks which quantity can be confirmed on the desired date, that is, the desired date is also the confirmed date.
Confirmed quantities
If an order has still not been checked, the confirmed quantities of the order and its components or stock transfer requirements are zero. If the ATP check can confirm the requirement quantities in the desired quantity, at the relevant requirements date, the order quantity is also fully confirmed. If the component requirements cannot be confirmed in full at the requirements date, the system determines the confirmed quantity for each order product using a correlation calculation. The system assumes that the quantity of an order product is proportional to the quantity of each required component. The system can then adjust the confirmed quantities of the component requirements to the component that has the lowest availability, and that therefore restricts the confirmed quantity of the order. The system thus only “reserves” as much of each component as is actually required according to the component with the minimum availability. The surplus confirmed component quantities are released again and are available for other orders. You set the correlation calculation mode in Customizing for Production Planning and Detailed Scheduling under Maintain Global Parameters and Defaults.
Missing parts indicator
The missing parts indicator is relevant for the components or stock transfer requirements of an order. The system sets the indicator automatically after an ATP check in the SAP APO system, as follows:
● For a component requirement the system sets the indicator:
○ If the confirmed quantity for the component requirement is zero
○ If the component determines the confirmed quantity of the in-house production order
● For a stock transfer requirement the system sets the indicator if the confirmed quantity is less than the requirements quantity
ATP status
The ATP status is relevant on the receipt level of an order. It displays:
● If an ATP check has already been performed for an in-house production order or a stock transport order item in the SAP APO system
● If the ATP check was able to confirm the order or item quantity
The following statuses exist:
● Not checked
No ATP check has been carried out yet for the order or the order item.
● Checked and not confirmed
An ATP check has already been carried out for the order or the order item. Since at least one component, or the product to be transferred, could not be confirmed at the requirements date, the order, or the order item, could not be confirmed.
● Checked and partially confirmed
An ATP check has already been carried out for the order or the order item. At least one component, or the product to be transferred, was only partially confirmed at the requirements date. Therefore, the order, or the order item, could also only be partially confirmed. (For an in-house production order, the system determines the confirmed quantity from the confirmed component quantities, using a correlation calculation).
● Checked and fully confirmed
An ATP check has already been carried out for the order or the order item. All the components, or the product to be transferred, were fully confirmed at the requirements date. Thus, the order, or the order item, could be fully confirmed.
The system sets the ATP status automatically. If you change an in-house production order or a stock transport order item that have already undergone ATP checks, the system automatically adjusts the ATP status according to the change. If, for example, you increase the order quantity, an in-house production order that was originally fully confirmed then has the status checked and partially confirmed. If you change a component in a partially or fully confirmed in-house production order, it will have the status checked and not confirmed.
Order status
An order that has already undergone an ATP check automatically acquires the status Firmed output.
Displaying ATP data
The system displays the ATP data for orders and requirements in interactive planning, such as confirmed quantities, ATP status, and missing parts.
Activities
If you want to execute the ATP check for an order in the interactive production planning, change to the editing mode, if necessary, and select execute ATP check.