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gATP check issue for Automatic material reservations

Former Member
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Folks,

In our SAP system, actual demand for a particular material will generally come from 2 different business lines. One from Projects (where actual demand is created in the form of Automatic Material Reservations are created upon creating a Project) and the other from Non Projects (through normal Sales orders).

We are facing a limitation to transfer these Automatic material reservations created off a project to SNP. So our current SNP has visibility to Forecasted demand (both from Project & Non Project history), but the actual demand from Project (which is in the form of Automatic Material Reservations) is NOT visible due to the above limitation.

Considering that the transfer of Automatic Material Reservation persists, we are looking into the effects this would have on gATP while checking & confirming the supply situation against the actual demand.

Ex: Suppose, there is a stock of 200 pcs ( in the form of receipts, safety stock, physical stock etc).

1. Initially, when a non Project SO is entered in the ECC system for 50 pcs, system checks in APO for the available supply and confirms the situation. Now there is committed stock of 50 and uncommitted stock of 150.

2. Further, a Project based reservation is created for 60 pcs. As this reservation is NOT visible in APO SNP, I am assuming that system might not commit the supplies to this demand (our expectation is to get the available supplies committed to this Project based demand, in someway or the other even though its not visible in SNP, but only in ECC) . Is this possible?

3. Further again, when a non Project SO is entered in the ECC system for 150 pcs, system checks in APO for the available supply.

Ideally system should have previously committed 110(50+60) and should commit only 90 pcs for this Non project based demand. However as system did not commit 60 from scenario 2, it will commit whole 150 pcs for scenario 3 demand , which shouldnu2019t be the case as practically there is a shortage of 60 pieces.

We are trying to avoid in our situation. Is there any alternative solution /configuration in gATP which would consider the a Project based reservation in ECC instead of looking for it in SNP, while confirming/comiitinga the supply in APO.

Manish, Sai were providing some insights into a similar kind of issue before. Guys, I would appreciate if you could provide me your insights on this issue too.

TIA

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Answers (2)

Answers (2)

Former Member
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Pat I can think of availability check based on the forecast. here it goes in this way.

Use

You execute a check against the forecast if you want to know if enough planned independent requirements are available for the incoming sales orders. In the check against the forecast, the system checks against a planned independent requirement created for an anonymous market, which is usually not customer-specific (for example, for the strategy "forecasting without final assembly", if production is only carried out to the stocking level).

Features

When forecasting for sales orders that you anticipate, you determine which order quantities can be expected for product groups and saleable products in a specific period. In Demand Management, planned independent requirements are created for a specific period for the order quantities that you anticipate. After the order has been received, the products whose requirements are consumed against the demand program are transferred to materials planning for the order quantity of the corresponding consumption quantities. The products are used to reduce the accompanying planned independent requirements level by level.

You activate the forecast calculation and assign the different consumption strategies, depending on the requirements class, via Customizing in the location-specific product master. (Master Data à Product à Requirement).

Activities

Requirements strategy

Basically, the requirements strategy assigns an (ATP) category for the forecast (such as FA or FC) to an (ATP) category group that can consume the forecast. The category group can consist of one or more categories. Therefore, forecast order category FA can be consumed by the following:

· Reservations (AM)

· Dependent demand (AY)

· Sales orders (BM)

· Customer requirements (BS)

. You maintain the requirements strategies in Customizing for the Advanced Planner and Optimizer (APO) via Master Data ® Product ® Specify Requirements Strategies.

Consumption mode

Using the consumption mode, you determine if and in which direction, beginning at the requirements date, the consumption of the independent requirements with the planned independent requirements should be carried out. The requirements date corresponds to the creation date of the order quantity for the sales order items.

You have the following options:

No consumption against the forecast

Backward consumption only

Consumption begins on the requirements date moving backwards in the corresponding consumption period.

Backward/forward consumption

Consumption begins on the requirements date moving first backwards and then u2013 if requirements lying temporally before the requirements date cannot be assigned u2013 forwards within the corresponding consumption period.

Forward consumption only

Consumption begins on the requirements date moving forwards in the corresponding consumption period.

Consumption horizon

You can specify a consumption period that determines the consumption horizon for both backward and forward consumption. If backward and forward consumption are both active, the system also takes both periods into account.

Former Member
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Thanks for the reply folks...

Let me put my question in other way to make things simple.

Say if the SO entered in ECC PS (Project Systems) is NOT transferred to APO SNP(due to some technical limiations), can gATP commit this PS based SO requirement based on the planning done in APO.

My only concern is whether the PS based SO requirement should always be present in APO for committing the requirement through gATP or can the PS based SO requirement be also present in ECC

Would appreciate if you could answe the query in this perspective.

TIA

Former Member
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Hi Pat,

This setting is control by requirement class in R/3 and Check mode in APO.

Please check your PS sales order is picking right requirement class .

Requirement class is determined by

Strategy group-MRP 1 screen

MRP group-MRP 1 screen

Planning Strategy-MRP screen

MRP type and item category

Hope it will help you .

Manish