Function documentation Availability Check for Stock Transport Order 

Use

The system runs an availability check in the supplying plant (issuing plant) for stock transport orders.

The checking rules that you define in Customizing determine which stocks (for example, stock in quality inspection and safety stock) and which receipts and issues (for example, reservations and purchase requisitions) are taken into account in the availability check.

The availability check checks the issuing storage location in stock transport orders by checking the assigned MRP area.

Constraints

In the following cases, no availability check is carried out:

  Stock transport requisitions from the planning run

  Stock transport requisitions from the conversion of planned orders

  Stock transport requisitions from other applications (sales order, production order, or network)

  There is no availability check for returns items.

  The availability check does not check batch stocks if a batch was entered. This function is not implemented. You may find it helpful to refer to modification notes 154682 and 350864.

Note

An availability check does not run automatically for subcontracting components, because this may lead to problems downstream.

For more information, see SAP Notes 323991, 184726, 418832, and 208463.

Prerequisites

Before the availability check can run in the supplying plant, the following prerequisites must be fulfilled:

Material master

  Checking group

You must enter a checking group for the supplying plant in the Availability check field of the material master (MRP 3 tab page).

Customizing for Purchasing

  Checking rule

Create a checking rule for the combination of document type and supplying plant. (Purchasing Set Up Stock Transport Order Assign Delivery Type and Checking Rule)

  Scope of check

Define the scope of check for the combination of checking group (material master) and checking rule (Customizing). (Purchase Order Set Up Stock Transport Order Define Checking Rule)

  Rule for availability check

Define a rule for copying ATP results to purchasing.

This rule controls how the system behaves in material shortage situations, and how the delivery proposal (confirmation proposal) is displayed.

You can control the following factors in Customizing:

  Display of results

You define how the system copies results of the availability check to the stock transfer document. In other words, you define how the delivery proposal is displayed in the delivery schedule line view.

You can choose between the following rules:

  One-time delivery (rescheduling: delivery proposal) – <blank>

This setting corresponds to the system behavior up to and including SAP ERP Central Component, Release 5.0.

  One-time delivery – A

  Complete delivery – B

  Delivery proposal – C

  Selection window for material shortage (batch: one-time delivery) – D

  Selection window for material shortage (batch: delivery proposal) – E

  Selection window for material shortage (batch: complete delivery) – U

The confirmed quantities can be displayed in two different forms in the schedule lines:

  If you have not entered a rule for copying, or if you use the one-time deliver rule, the system displays user want and confirmed quantities in the same delivery schedule line.

  For all other rules, the user want and confirmed quantities are displayed in different delivery schedule lines.

Note

If you change these Customizing settings, existing orders are not converted automatically. The changed setting only takes effect if you change an affected order. To convert several open orders, you can use rescheduling.

  System behavior in case of material shortage

You define how the system behaves if there is a material shortage.

If stocks are not sufficient, the system can react in two ways:

  The system shows a dialog box and prompts you to choose between different options.

  The system automatically proposes an option (there is no dialog box).

 

For more information, see SAP Notes 498149FAQ: Availability check in purchasing and 885177Stock transfer in purchasing: new schedule line processing.

Features

When is the availability check carried out?

In the Enjoy transactions, when you change MRP-relevant data (for example, quantity, date, supplying plant, or planned delivery time), the system automatically checks availability.

Note

The system checks the availability of schedule lines on a daily basis.

See Stock Transfer in Purchasing

What is checked, which quantities for which dates?

Quantities

From the point of view of the supplying plant only, the system always checks the open quantity of an item according to the following formula:

Ordered quantity minus maximum of delivered quantity or goods issue quantity

If the order item was created with reference to a purchase requisition, the check ignores the requirements for the purchase requisition, because the order takes over the requirements for the purchase requisition. The also applies if the purchase requisition was only partially converted.

Example

In the supplying plant, there are 60 pieces of the ordered material. In the purchase requisition, 100 are requested, but only 30 are ordered. If the purchase requisition with its remaining quantity of 70 were to be counted as a requirement, nothing would be confirmed in the order.

Dates

The date on which availability is checked is calculated from the delivery date minus the planned delivery time from the receiving plant.

If shipment scheduling is activated, the material availability date is used for the check.

Where do I see the result of the availability check?

The schedule lines of the stock transport order contain specific information about the result of the availability check, as well as shipment scheduling and transportation scheduling, if these are in use.

The result of the availability check is saved in the schedule lines according to the settings selected in Customizing (rule for copying the results of the availability check).

The differences between individual rules are described below.

One-time delivery (rescheduling: delivery proposal) – <blank> and one-time delivery – A

These rules have the following features in common:

  The availability check only confirms quantities that are available on the desired delivery date.

  The availability check includes all order items with the same material and the same account assignment.

If a document contains several items with the same material (and the same supplying plant), all of the items are always checked together. This means that a change to item 10 can affect the availability of item 20.

  User want and confirmation are displayed in the same schedule line.

Example

The user enters the following data:

  Delivery date    10/18/2006

  Schedule Line Quantity 10

The availability check shows the following availability situation:

  Quantity 6 available on 10/18/2006

  Quantity 4 available on 10/25/2006

The result of the availability check is displayed in the delivery schedule line view as follows:

Delivery Date

Schedule Line Quantity

Confirmed Date

Confirmed Quantity

10/18/2006

10

10/25/2006

6

These rules differ where rescheduling is concerned:

  One-time delivery (rescheduling: delivery proposal) – <blank>

Rescheduling adjusts the delivery date requested by the user to the availability situation.

  One-time delivery – A

Unlike the rule One-time delivery (rescheduling: delivery proposal), rescheduling changes only the confirmed date and confirmed quantity, not the user want.

Complete delivery – B, delivery proposal – C, and rules for material shortage (rules D, E, and U)

These rules have the following features in common:

  The availability check only checks the order item in question.

  Rescheduling changes only confirmed dates and quantities.

  User want and confirmation are displayed in different schedule lines.

Complete delivery – B

  The availability check confirms only the total requested quantity on the date of its complete availability.

  If the requested quantity is not completely available at any point in time, no quantity is confirmed.

Example

According to the complete delivery rule (rule B), the result (described above) of the availability check is displayed in the delivery schedule line view as follows:

Delivery Date

Schedule Line Quantity

Confirmed Date

Confirmed Quantity

10/18/2006

10

10/25/2006

 

10/25/2006

 

10/25/2006

10

Delivery proposal – C

  The availability check confirms the quantities on the date of their availability. Partial quantities can be confirmed on different dates.

Example

According to the delivery proposal rule (rule C), the result (described above) of the availability check is displayed in the delivery schedule line view as follows:

Delivery Date

Schedule Line Quantity

Confirmed Date

Confirmed Quantity

10/18/2006

10

10/25/2006

 

10/18/2006

 

10/18/2006

6

10/25/2006

 

10/25/2006

4

Rules for material shortage (rules D, E, and U)

  In case of a material shortage, the system shows a dialog box and prompts you to choose between different options.

  If purchase order processing is in the background, the following rules lead to the following system behavior:

  Rule D: Selection window for material shortage (batch: one-time delivery)

If purchase order processing is in the background, the availability check only shows the quantities that are available on the given delivery date, as for rule A (one-time delivery).

  Rule E: Selection window for material shortage (batch: delivery proposal)

If purchase order processing is in the background, the availability check confirms quantities on the date on which they are available, as for rule C (delivery proposal).

  Rule U: Selection window for material shortage (batch: complete delivery)

If purchase order processing is in the background, the availability check confirms the total given quantity on the date on which it is available, as for rule B (complete delivery).

 

Note

If the system cannot confirm the total quantity (for example, if the check does not take replenishment lead time into account), the date is changed to 21/31/9999.

If the complete desired quantity is not available on the desired date, you see message 06 450, which you can define in Customizing as a warning message or an error message.

 

For more information, see SAP Note 885177Stock transfer in purchasing: new schedule line processing.

Activities

You can run the availability check manually in stock transport orders (and in stock transport requisitions). To do this, choose This graphic is explained in the accompanying text Check Availability.

 

For more information about the availability check in inventory management, see Availability Check.

For more information about the availability check in shipping, see Working with the Availability Check in Shipping.

 

 

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