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ATP Check Configuration

Hello Experts,

Can someone send me the step by step configuration guide for ATP check.

Thanks in advance.

Best Regards,


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    author's profile photo Former Member
    Former Member
    Posted on Nov 21, 2007 at 11:01 AM
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  • author's profile photo Former Member
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    Posted on Nov 21, 2007 at 11:04 AM


    ATP -

    This is the quantity still available to MRP for new sales orders.

    The ATP quantity is calculated according to the following formula: ATP quantity = warehouse stock + planned receipts - planned issues.

    ATP Check

    Distributiing ATP Quantities

    Configuring Rules - ATP

    ATP check with MRP areas

    Availability check

    1. Availability check is an integral part of the business process that determines if the required delivery quantity can be met on a required delivery date. For this purpose the system takes into account pre-delivery activities such as scheduling for picking or packing times and the time taken to produce or obtain the material. It also performs several background functions such as Backorder processing, rescheduling and ATP quantities.

    2. Backorder processing: processing of a sales order that has not been fully confirmed or not confirmed at a certain delivery date.

    3. Rescheduling: is a proposal of how – confirmed quantities already assigned to a sales order can be reassigned to other sales orders that have a higher priority.

    4. Available to promise (ATP): is a process of checking the available quantities of a material. The ATP quantity consists of warehouse stock + planned receipts (incoming stock) – planned issues (outgoing stock). to examine stock on hand (CO09) proceed to logistics – sales & distribution – sales – environment – availability overview.

    5. Replenishment lead time (RLT): is the time taken for the material to become available either internally (in house production) or externally (from a vendor). The most important things to consider during an external procurement are purchasing and MRP2 (procurement) views of MMR where the processing time for purchasing, planned delivery time and goods receipt processing time are taken into account. On the other hand internal procurement is based on in house production time (MRP 2 view) goods receipt processing time or alternatively RLT time, which is found on MRP 3 view.

    6. RLT (Replenishment Lead Time) is the time taken for the material to become available. RLT is only used when doing an ATP check (Available To Promise). The value of RLT for a material is specified on material master record.

    7. There are three types of availability checks –

    o Check on basis of ATP quantities.

    o Check against product allocation.

    o Check against planning.

    Configuring Availability check through Checking Groups

    1. The checking group + checking rule determine how the availability check is to be performed.

    2. The checking group determines whether and how the system checks the stock availability and generates requirements for material planning. The checking group defines what type of requirements will be passed on i.e. summarized requirements (daily/weekly) or individual requirements for each sales order.

    3. The checking rule applies to how the availability check is to be carried out at the transaction level. Note that you must define checking rules for each individual application such as for production orders for example. In Sales and Distribution, the checking rule is specified internally within the system and cannot be changed.

    4. The checking rule, in conjunction with the checking group, determines the scope of the availability check for every business operation; that is, which stocks, receipts and issues are to be included in the availability check and whether the check is to be carried out with or without the replenishment lead time.

    5. Briefly explaining the above – checking group determines which type of requirement to be passed on to MRP whether it be individual or summarized and checking rule which is at the transaction level and can be configured independently for each application module, determines which stocks, receipts and issues to be taken into account. For performing an availability check checking group has to work in conjunction with checking rule.

    6. Advantages of individual processing over summarized processing –

    Backorder processing is possible.

    You can access (MD04) order, line and schedule line individually which gives a greater control on available stock and requirements placed on stock.

    The system automatically uses individual requirements in case of special stock items.

    7. Required data for the Availability check to be carried out –

    The Availability check must be switched on at the requirement class level.

    The Availability check must be set at the schedule line level.

    A requirements type must exist by which the requirements class can be found.

    A plant must be defined in the sales order for each schedule line item (in other words plant must be defined for every material in MMR).

    A checking group must be defined in the material master record in the MRP3 screen in the availability check field.

    8. Configuring Availability check and defining Checking Groups –

    Checking groups are introduced into the sales order based on the setting in the material master record.

    SAP standard checking groups are 01 – summarized requirements and 02 – individual requirements or you can create your own by copying the standard ones.

    Total sales and total deliveries columns are there to configure a checking rule to sum up requirements to post to MRP either individually or by day or week.

    Block quantity required can be set if you want several users to be able to process the material simultaneously in different transactions without blocking each other.

    The no check indicator is CHECKED when you DO NOT want the system to carry out ATP check.

    9. Defining material block for other users – the block check box is an indicator that enables you to block material master records of a particular material during the availability check and restrict other users from accessing same master record and reserve the material. If the block is not set, two users can confirm the same material at the same time for two different orders, not knowing if the stock is available or not. If you select this field, the material is blocked during the availability check and other users cannot: a) Make changes in the material master record. b) Create purchase orders for the material. C) Create orders for the material.

    10. Defining default values for checking groups - Checking groups are introduced into the sales order based on the setting in the material master record.

    However if there is no entry present in the material master record for the checking group, a default value can be set here, depending on material type and plant.

    This default value will be used by the system depending on the material type mentioned in MMR and plant in sales order.

    If an entry exists, this default value is over written by MMR.

    11. Controlling Availability Check – in this section, you tell the system what stock on hand and what inward and outward movements of stock it must take into account when performing the availability check in addition to whether or not to consider the replenishment lead time.

    12. These settings are based on the checking group that is assigned to the material master record and the checking rule that is predefined and assigned to the sales and distribution transaction.

    13. These settings carry out control both for sales order and delivery as well. This is due to the fact that you may want to include specific stock or incoming stock for the sales order, yet at the time of the delivery only include physical stock on hand waiting to be shipped.

    14. It is possible to indicate to the system that you would like the availability check NOT TO CHECK the stock at the storage location level. This indicator is used to set the scope of the availability check.

    15. It is used to switch off the check at storage location level. You create a reservation for a particular storage location. However, the scope of the availability check is set in such a way as to exclude the storage location. In this case, the system carries out the check at plant level only and does not take the storage location into account that is specified in the reservation.

    16. Should you not want the system to automatically check RLT, you may indicate so here. RLT is the time taken for a material to become available. It is only used when doing an ATP check and is taken from MMR.

    17. defining the elements in the availability check entirely depends on the business needs, but a few tips are given under –

    When controlling the Availability check at the time of the sales order, a purchase requisition does not necessarily indicate by it is going to come into the plant.

    A shipping notification on the other hand - a confirmed purchase order – is a good indicator of receiving stock on a specified date.

    It is always recommended not to select the shipping notifications for the delivery requirements type as you may not actually receive the stock into plant or warehouse for which you are creating a delivery.

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  • author's profile photo Former Member
    Former Member
    Posted on Nov 21, 2007 at 11:08 AM

    Hi Prashanth,

    Is that possible to have some documents with the screen shots?



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  • Posted on Nov 21, 2007 at 01:42 PM

    dear siva


    To confirm the quantities for a particular line item in the sales order on particular day system carried out transfer of requirements (TOR) & AVAILABILITY check, so has to confirm the quantity on particular day as system should know what are there requirement of the sale order and delivery with MRP then system carries out availability check function, to confirm the quantity on particular day. Depending upon the IMG setting system carries out availability check function based on 3 methods:

    A) Availability Check with ATP logic or against planning:

    In ATP logic systems ATP Qty while carrying out availability check function for

    Particular line item (ATP qty=warehouse stock +planned receipts planned issues)

    Planned Receipts: EX: - purchase requisitions, purchase orders, stock in transfer stock at inspection etc.

    Planned Issues: - EX: - open sales order & open delivers

    B) Availability check against product allocation:

    Availability check can be carried out against product allocations in which system automatically restrict the user to confirm the quantity beyond reserved quantities per particular customer. EX:- Availability qty =100, existing orders=10,then system automatically distributes to items evenly to the sales order.

    C) Rule based Availability check:

    Rule based availability check can be carried out based on the business transaction.

    EX: - For normal sales order system has to carry out availability check for special sales order ex: - cash sales and rush order systems need not to be carry out availability check,

    In rule based availability check system in which system carried out Global availability to promise in all plants. In this check system transfers the requirements to APO system where GATP takes place and the result of the availability check transferred to R/3 system. This process takes place with the transaction code CIF(central inter face) inR/3.After carrying out availability check function system proposes(by using ATP logic) default values of ATP check result to the user in a dialog box, in which system gives the choice to the user to take the decision in contest of insufficient stock.

    a) One time delivery:

    If the user chooses one time delivery and the order Quantity is 100 units system confirms 50 units then systems automatically confirms as a zero. If the user saves the document with the zero confirm qty then system trace the sales order as aback order (V_RA), which can be confirmed later by RESCHEDULLING (V_V2).

    b) Complete Delivery:

    If order Qty=100, Availability stock = 50, system says that remaining can be given after one week. Then if the user selects this option then system push up existing confirmed qty to after one week and the total qty can be confirmed after one week only.

    c) Delivery Proposal:

    If order qty=100, system confirms 50, and remaining 50 can be confirmed after one week. If the user chooses this option then system confirms 50 Qty today allows the user to delivery 50 quantities today remaining 50 can be delivered after one week.


    Define Requirement Class:

    Path: Img  S&D  Basic functions  Availability Check & Transfer of requirements  Transfer of requirements  Define Requirement classes

    Requirement classes control MRP, Requirement consumption, strategy, relevance for planned. It specifics whether the availability check & TOR to be Called out for transactions. Ex: Sales Order

    It determines whether requirements relevant for MRP or not, the allocation indicator from the sales view which controls the settlement of customers requirements with planned independent requirements. It determines the item b to be settled as an availability heck. Assignment, the settlement profiles the results analysis key. The TOR and Availability check functions are globally controlled using the requirement class for all the Sales documents. The values from the Requirements class are transferred to scheduled the of the sales documents class are transferred to scheduled the of the sales document default values and can be over written there.

    Define Requirements Classes:

    Requirement class defines whether the system has to carry out availability check based on the STP Qty. Ex:

    Define Requirement Types:

    Here we define requirement type, Ex: and Assign to Requirement class that we defined in the promote step.

    Determination of Requirement types using Transaction:

    Requirement type is going to be determined for sales document by following a search strategy. .

    First System checks strategy group in MRP3 view if it trend requirement type then system takes from it, otherwise.

    It will go to MRP group in MRP1 view, otherwise

    It will check to Material type, otherwise

    It will go to item Category + MRP type, otherwise

    It will go to Item category only, otherwise

    Finally system determines the transaction b not relevant for TOR & Availability check.

    Choose Item category TAN+MRP type PD=Requirement type =0

    Define Procedure for each schedule the category:

    Here we define respective schedule the category of the sales documents, whether an availability check and TOR should be carried out. This setting is relevant for sales documents only. It is fine tuning of availability check for sales documents TOR & Availability check function can be activated at sales order level those are proposed in to schedule line category level. If u wants to deactivate TOR availability check function at schedule the category level and want to deactivate at requirement class level it b impossible.

    Ex: If u wants to check availability w/o transferring the requirement we can use it.

    Choose schedule line category CP & Activate Availability check, requirement & Product Allocation

    Block Quantity confirmation in delivery Blocks:-

    When we transfer requirements to MRP then confirmed quantities is also reserved for confirmed sales documents, if transaction is blocked for delivery the reserved quantities are also blocked so that the conformed quantities cannot be used by any other purpose. So has to avoid this situation we can block the transfer of requirements(TOR) for delivery blocks, in this case requirements transferred to MRP but will not be reserved, that will be cleared once we save the documents then system shows confirmed qty as zero.

    When we remove the delivery block then system automatically carries out availability check & confirms the qty.

    A) Deliveries: Blocking region for sales Area:

    Here we define blocking regions for TOR ex:-credit limits

    B) Reasons for scope of delivery blocks: TOR. Block:

    Ex: - 01 credit limits-check confirmation block.

    Maintain Requirements for TOR:-

    Here we can define our own requirement with the help of ABAPer for TOR

    Ex: - a) 102- prevent reservation in the event of credit block

    b) 102-purchase requisitions.

    System doesn’t create purchase requisitions for sales order line items if it has a credit limit.

    Availability check:

    Configuration setting:-

    Availability check with ATP logic or against planning:-

    Define checking group:

    Checking group define what kind of requirement record system use to create when sales order & deliveries are processed for this material. We can create 2 kinds of requirements records

    Individual requirement records: that means system creates requirement record for each S&D document.

    Summarized requirement Records: That means system creates requirement records under certain condition in the material master record. There are 2 type of summarized requirement record:

    Summarized requirement records for each day.

    Summarized requirement records for each week

    Define checking Action;

    Here we define 01- daily requirement -B 02- Individual requirements -A

    Where b-total record per day

    A-single record per day

    B) Define material Block for other users:

    When 2 users tries to confirm the quantities for the sales order for same material at a time system will be confused to confirm the quantities both sales orders. So has to avoid this kind of situation we can block the materials from confirming the quantities for 2 users at a check, check block

    C) Define checking group default values:

    Checking group is going to be determined depending upon the material type & plant.

    -Go to new entries, specify material type, ex;-FERT

    & plant = checking group of availability check: 02

    D) Carry out for Availability check:

    Here we define checking rule for the Availability check & allocate them to the checking group. The checking rules specify the scope of the availability check. For a respective transaction, means which planned receipts & planned issues systems has to taken into consideration and also it determines whether system has to take RLT into consideration.


    *Select checking group of availability check-02, checking rule=01

    *Go to details icon, & check which planned receipts & planned issues system has taken into consideration for availability check

    *save it, exit.

    E) Define procedure by Requirement class:

    Here we define requirement class whether on availability check & TOR should be carried out the setting that we carries out at requirement class level they are at global level. There settings automatically copied into define from of requirement class and vice versa.


    *Choose requirement class: 041 & check availability check & TOR (requirement)

    F) Define procedure for each schedule line category:

    Here we carry out fine tuning setting for availability check at schedule line category level. Here we define whether system has to carry out Availability check for particular transaction.

    Ex:- if we want to implement a availability check w/o TOR for a particular transaction. According to settings at requirement class level TOR & availability check function activate & those setting will be copied into the schedule time category by default, so that at schedule line category level we deactivated TOR

    G) Determine procedure for each Delivery Item category:

    Here we switch on or switch off availability check functions of a delivery item category

    *choose item category ‘TAN’. & specify the appropriate value.

    H) Checking group for updating back orders:

    Here we assign checking group to a plant that rule specifies for individual application, according to which the availability check is carried out;

    I) Define Default settings:

    Here we define the result of the availability check.

    *Choose your sales Area, & check fixed dates& Qty options & specify ‘D’ or ‘E’

    Where: D- Dialog box in the case of shortages (one time delivery)

    E- Dialog box in the shortages (delivery proposal).

    rewards if it helps


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