Configuring ATP Check in the Sales and Supplying System

7/30/2019 Configuring ATP Check in the Sales and Supplying System

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Configuring ATP Check in the Sales and SupplyingSystem

Use

This section describes the settings required for transferring requirements and the ATP check in the sales and supplyingsystems.

Procedure

1. Check the checking group. In Customizing forSales and Distribution choose Basic FunctionsAvailability

Check and Transfer of Requirements Availability CheckAvailability Check with ATP Logic or Against

PlanningDefine Checking Groups.

Example: ATP group

Checking group TotalSales TotalDlvReqs Block QtRq

02 (individualrequirement)

A (single records) A (single records) X

The valueA must be set for the TotalSales and TotalDlvReqs fields.

The Block QtRq indicator must be set in both systems. Otherwise, the unlocking routines are not called in SAPAPO, and the temporary quantity assignments remain in the SAP APO system.

2. Specify the default value for the checking group. In Customizing forSales and Distribution choose Basic

FunctionsAvailability Check and Transfer of Requirements Availability CheckAvailability Check with

ATP Logic or Against PlanningDefine Checking Groups Default Value. Make sure that there is a checking

group set for individual requirements in the material master (see also: Maintaining the Material Master).

Example: Default value for checking group

System Material type Plant Checking group(AvailCheck field)

Sales system HAWA 0011 02

Supplying system HAWA 2200 02

3. Check the assignment of schedule line categories to the item category, which the system proposes

automatically when it creates the item. In Customizing forSales and Distribution underSalesSales

Documents

Schedule Lines

Assign Schedule Line Categories.

Example: Assigning schedule line categories
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Item category MRP type Proposed scheduleline category

TAN (standard item) PD (MRP) CP (MRP)

4.

Check the assigned schedule line category. In Customizing forSales and Distribution underSales

SalesDocumentsSchedule LinesDefine Schedule Line Categories.

Example: Schedule line category (standard)

Sched. line cat. Movement type Req./Assembly Availability

CP (MRP) 601 (GD goodsissue: delvy)

X X

In the sales system, check the schedule line categories for account assignments. The schedule line categoryCS (leg/third-party business) should have the account assignment category X(all aux.acct.assgts).

5. Define a requirements class of your own if required. In Customizing forSales and Distribution choose Basic

FunctionsAvailability Check and Transfer of Requirements Transfer of RequirementsDefine

Requirements Classes.

Example:

Define your own requirements class (such as, ZBK) by copying the standard requirements class 041

(Order/delivery reqmt).You must set theAvailabilityand Transfer of Requirements indicators.

The check mode in SAP APO corresponds to the requirements class in SAP R/3.

6. Define your own requirements type if required, and assign this to the requirements class. In Customizing for

Sales and Distribution choose Basic FunctionsAvailability Check and Transfer of RequirementsTransfer

of RequirementsDefine Requirements Types.

Example:

Requirements type ZBK Requirements class ZBK

7. If required, specify determination of the requirements type using the transaction. In Customizing forSales and

Distribution choose Basic FunctionsAvailability Check and Transfer of Requirements Transfer of

RequirementsDetermination of Requirement Types Using Transaction.

Example: Determining the requirements type using transaction

Item category MRP type Requirementstype

Origin of requirements typefor requirements typedetermination


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TAN PD ZBK 0 (strategy material master,then item cat, and MRPcharacteristic)

8. Check the control for the availability check. In Customizing forSales and Distribution choose Basic Functions

Availability Check and Transfer of Requirements Availability CheckAvailability Check with ATP Logic

or Against PlanningCarry Out Control for Availability Check.

Example: Control for availability check

Checking group 02/Checking rule A (SD order)

Checking group 02/Checking rule B (SD delivery)

The following indicators are set:

In/outward movements:

o Incl.purchase orderso Include sales reqmts

o Incl.ship.notificat.

Replenishment lead time

o Check without RLT

9. Specify determination of the requirements transfer using the strategy group.

a. Define a strategy of your own if required. In Customizing forProduction choose Material Requirements

PlanningMaster DataIndependent Requirements ParametersPlanning StrategyDefine

Strategy.

Example: Strategy

Define your own strategy (such as A1) by copying the standard strategy 10.

Set the requirements type for customer requirements straight to ZBK (order/delivery reqmt).

b. Define a strategy group of your own if required. In Customizing forProduction choose Material

Requirements PlanningMaster DataIndependent Requirements ParametersPlanning

StrategyDefine Strategy Group.

Example: Strategy group

Strategy group: A1

Main strategy: A1

c. Enter the strategy group in the material master on the MRP 3 tab page.

The strategy group refers to a strategy. The strategy refers to the requirements type. Therequirements type refers to a requirements class.

The requirements class from SAP R/3 is transferred to the SAP APO system during the ATPcheck of the sales order, and results in the check instructions as the check mode together with


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the business event. The prerequisite for this is that the relevant check modes have beencreated in SAP APO, for example, by transferring the ATP Customizing settings using the SAPAPO Core Interface from SAP R/3 to SAP APO (see Integration Model: ATP Customizingindicator is set).

All other applications do not transfer a check mode. In this case, the check mode is read fromthe SAP APO product master. For this reason, you must enter the check mode in the SAPAPO product master.

Availability Check and Requirements in Sales andDistribution Processing

Availability Check in Sales and Distribution Processing

Requirements in Sales and Distribution Processing

Availability Check in Shipping

Availability Check against Product Allocation

Available-to-Promise on the Internet

Types of Availability Check in Sales and DistributionProcessing

There are three types of availability check:

Check on the basis of the ATP quantities

Check against product allocation

Check against planning

In Customizing, you determine whether an availability check is to be carried out against the ATP quanitity or againstplanning. The check against product allocations is controlled in the material master and elsewhere in the system.

Check on the Basis of the ATP Quantities

The ATP quantity (ATP = Available To Promise) is calculated from the warehouse stock, the planned inwardmovements of stock (production orders, purchase orders, planned orders) and the planned outward movements ofstock (sales orders, deliveries, reservations). This type of check is performed dynamically for each transaction, takinginto account the relevant stock and planned goods movements with or without replenishment lead time. Plannedindependent requirements are not taken into account here.

Check against Product Allocation

Product allocation facilitates period-based distribution of products for certain customers or regions. As of Release 3.0F,you can carry out an availability check against product allocation. This ensures, for example, that when production islow, the first customer does not get the full amount, resulting in following sales orders not being confirmed or beingconfirmed far too late.
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Check against planning

The check against planning is performed against independent requirements which are usually created for ananonymous market rather than being customer-specific (for example, in the strategy Planning without assembly,when production occurs only up to the stocking level). The planned independent requirements result from demandprogram planning and are used for planning expected sales quantities independent of orders

Weitere Informationen hierzu erhalten Sie unterAllocating and Reducing Independent Requirements in Sales and

Distribution Processing.

Including Replenishment Lead Time

Replenishment lead time is the time that is needed to order or produce the requested material. The system determinesreplenishment lead time according to specific times defined by you in the material master record. Depending on thematerial type, replenishment lead time can be calculated according to various time periods. In the case of tradinggoods, for example, it is determined according to the planned delivery time, purchasing processing time, and the goodsreceipt processing time.

Replenishment lead time is only included in the check performed on the basis of the ATP quantity.

Availability Check Including Replenishment Time

Availability is only checked up to the end of replenishment lead time. If the material availability date is calculated on thebasis of the current date to lie after the replenishment lead time for the item, the item itself can be confirmed despiteinsufficient stock being available. In this case, the system assumes that any quantity requested by the customer can beprocured by the material availability date and considers the goods to be available. Therefore, a binding confirmationcan be sent to the customer.

The following figure shows such a case. The customer wants 20 pieces delivered in full by the requested delivery date.

Using backward scheduling, the system determines a material availability date. However, no goods are available. Theinward movement of 100 pieces is used up by an outward stock movement. Therefore no stock is available for thematerial availability date determined by the system. If replenishment lead time were not taken into account, thefollowing situation would arise. The customer wants complete delivery. However, as a result of further inward (50pieces) and outward stock movements (40 pieces), the goods only become available shortly before the requesteddelivery date specified by the customer when 60 pieces are added to the stock. Correspondingly, the delivery dateresulting from this material availability date would lie further in the future.

However, since replenishment lead time is taken into account during the availability check, the 20 pieces ordered canbe delivered before this date, namely at the end of the replenishment lead time.
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To ensure that the replenishment lead time can be correctly calculated, the required times must beentered in the material master record. For in-house produced goods, the overall replenishment leadtime is required, for externally procured materials, the planned delivery time, the processing time forgoods receipt, or the processing time for purchasing is required.

Performing the availability check including replenishment lead time only makes sense if materials planning is carriedout at regular intervals (best of all, daily for individual and daily requirements and weekly for weekly requirements). Thisensures that inward movements of goods are checked against confirmed quantities. This is necessary as the deliverydate for a sales order which has been confirmed on the day before replenishment lead time begins lies the next daywithin the replenishment lead time period and this leads to insufficient stock being available. This shortage can result in

problems such as delivery creation being blocked.

Availability Check Excluding Replenishment Lead Time

If replenishment lead time is not to be taken into account in the availability check, the system can perform anunrestricted availability check. The following figure shows how the system reacts if an availability check is performedunder the same conditions as in the figure above but excluding replenishment lead time. The customer also requirescomplete delivery of 20 pieces in this example.


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The quantity can only be confirmed on the date on which availability can be guaranteed again as a result of plannedinward movements of stock. In this case, this is on the date when 60 pieces are added to stock.

Availability Status Display Options

You have the following options for displaying availability for materials:

1. In the sales menu you select EnvironmentAvailability Ovwto display the availability status for a material with

reference to the plant and the checking rule.

In the shipping menu you can display the same data by selecting EnvironmentInventory management

Availability overview.

2. Display total requirements

To display current requirements/inventory status by material and plant with assignments to planned

independent requirements, select (Logistics Production Master planning Demand management

Evaluations Display total reqmts)

3. Display current requirements/inventory

To display the available quantity for each material and plant from the MRP point of view; the availablequantities are determined from the receipt elements and stock elements that are valid for MRP (Logistics

Materials management Inventory management Environment Stock Stock/rqmts. list)

Configuring ATP Check in the Sales and Supplying System

Documents

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