Answer / sundar raghuraman

Availability check determines if the desired qty. can be
met on the desired dly.date.
There are 3 types of Availability checks 1. Against ATP 2.
against product allocation 3. against planning.(push cycle)

Availability check is based on checking group(defines the
type of requirement) and Checking rule (scope of
availability i.e.,how the check has to be done)

And this can be configured in IMG -SD- Availability Check
and Transfer of requirement.

Product allocation: In demand times we can limit the dly.
qty to the customers and that time the check will be done
against product allocation.

I welcome any other detailed answers

Answer / seetharam g.k.

Q What is the difference between ATP check and availability
check how these reflect in sales order (which check system
considers) what are the IMG settings for the same

? ATP is know as available to promise quantities and it is
calculated as below.

Ware house stock + planned receipts ? Planned issues = ATP
quantities.

Ex1. 100 + 50 -75 = 75 is ATP Quantity

Any remaining open quantity in the movement is regarded as
the ATP quantity and can be used to fulfill the next
requirement.
Ex2. 25 + 100 -150 = -25 ATP Quantity,
In this case the system try to capture the stock from other
inward movement and try and match the order quantity 150.and
even this is not available and partially met then the system
shows the negative ATP Quantities in the requirement line.
? During the availability check the system determines the
ATP quantities for the material and the pant.
? The system behaves in performing the availability check
based on how the availability check is set in customizing.
? This can be viewed in the sales order ? over view screen ?
procurement and you can see the confirmed quantity and ATP
Quantity.


Availability check:

Stock checks which is automatically carried out after every
goods movement and which should prevent the book inventory
balance of physical stock (for example, available stock)
from reaching zero.
types of Availability checks
1. Against ATP
2. against product allocation
3. Against planning.
Availability check is based on checking group, Requirement
class, and Requirement type and schedule line category.

Answer / subha

One is process and the other is actual check which you do
before you take the actula delivery detrmination or order
process

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