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availability check

Former Member
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please explain about availability check in MM

Accepted Solutions (1)

Accepted Solutions (1)

former_member581212
Active Contributor
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hi,

Use

The availability check in Shop Floor Control checks whether the components, production resources/tool or capacities required for a production order are available.

Features:

In a production order, the system can only check a material component, if it is

Kept in stock

Not a phantom item

Not a bulk material

Availability checks can be triggered either automatically or manually:

The availability of components in an order can be checked automatically during order creation and/or order release. You specify in Customizing per order type and plant whether the availability should be checked automatically (see Checking Control). In addition, an automatic availability check can be carried out when the order is saved.

You can always trigger a manual availability check

The checking scope is defined via the Checking Group (in the material master) and the valid Checking Rule (in Customizing).

They define:

Which MRP elements are taken into account in the check

Which inventory categories are taken into account

Whether the replenishment lead time is taken into account

Whether the check is also to be carried out at storage location level

In Customizing (checking control) you specify which quantity is used to check the availability of a material. You can choose between the following:

Availability Check Against Planned Independent Requirements

In the check against planned independent requirements, the system only checks the open planned independent requirement quantities created for the components. This means that the ATP quantity is not included in this availability check nor are receipts or stocks.

This type of availability check is most useful:

if assembly planning or phantom assembly planning is used to plan the components

if quick statements about the availability situation are required and the results from this check are precise enough

The system uses the open planned independent requirements quantity at component level to determine a committed quantity and this quantity is copied to the planned order header in the Committed quantity field. As opposed to the availability check according to ATP logic, however, the committed quantity is not recorded in the dependent requirements. The planned independent requirements of the components are not consumed by the committed quantity but by the complete dependent requirements quantity. In availability checks that follow, the system can only commit quantities for the amount of planned independent requirements that have not yet been consumed.

In the availability check against planned independent requirements, the following dates/quantities are not calculated:

overall commitment date

partial commitment date/quantity

ATP quantity

In the check according to ATP logic, the system checks whether the dependent requirements of each component are covered by specific receipt and issue elements or by stock. This check is carried out dynamically, that is, each time you carry out the check, the system recalculates the current situation. If a quantity can be committed for the requirement date, the system enters precisely this quantity as the committed quantity in the dependent requirements and the ATP quantity for the components is reduced by the committed quantity. Therefore, in the next availability check, dependent requirements can only be committed for the amount of the remaining ATP quantity.

http://help.sap.com/erp2005_ehp_03/helpdata/EN/fc/836ae8f66111d2b6a70000e8359890/frameset.htm

Hope it helps..

Regards

Priyanka.P

AWARD IF HELPFULL

Answers (1)

Answers (1)

Former Member
0 Kudos

In Inventory Management, two types of availability check are carried out.

o availability check during the entry of reservations

o availability check during the entry of goods movements

The system checks whether the material to be withdrawn is available and

issues a message, if necessary.

Note

the availability check is only carried out if:

o the material master record contains a checking group for the

availability check (MRP data)

o a checking rule is assigned to the transaction in Customizing

You can define

o for each movement type which type of message is issued (object

Movement type)

o which checking rules are supported (object Checking rule)

o per checking group and checking rule: which objects (documents,

stocks, material requirements) are included in the availability check

(object Define checking rule)

o per transaction of Inventory Management: which checking rule applies

(object Transaction codes)

Default Settings

o In the standard system, the message type A (warning in the case of

non-availability, otherwise no message) is set for all relevant

movement types.

o For Inventory Management, the checking rule 03 is provided.

Recommendation

SAP recommends that you accept the settings defined in the standard

system. In this case, no action is required on your part.

The checking rules are also used by other applications (Sales &

Distribution) and can also be maintained by them. If you want to define

new checking rules or change existing rules, SAP recommends that you

contact the other applications (Sales & Distribution, Material

Requirements Planning).

Activities

1. Define the movement types for which an availability check is to be

carried out and which type of message is issued.

2. Check the checking rule that you want to use in Inventory Management.

Define a new checking rule, if necessary, and define for each checking

group which objects are included in the availability check for this

checking rule.

. Check the availability checking rules for each transaction. Assign

other checking rules to the transactions, if necessary.