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Error in ATP checking

Hi All,

Could you please check the below screen and help me clear the doubts in ATP process.

For one item, the existing stock is 1,304,480 PCE and the Production orders (the product end date is tomorrow ).

The question is even though the ready stock and production order quantity is not equivalent to the total sales order quantity, the system is showing that in ATP checking, the full quantity as confirmed.

Is it correct or are we missing any configuration?

Thanks for the help.

MDO4-bmp.jpg (59.6 kB)
ATP Wind--bmp.jpg (132.2 kB)
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  • Best Answer
    Posted on Jun 11, 2014 at 08:58 AM

    You should not use MD04, use CO09. It is a much more accurate depiction of your ATP situation.

    In the "ATP Wind" screenshot, click on the "ATP Quantities" button. This will bring you directly to CO09. I suspect that your end lead date = 10.08 which is why you are getting a confirmation on that date. If that is the case, press F1 on the "End lead date" field, this gives you a clear explanation on the field is calculated.

    If the above does not help, then please provide a screenshot of your CO09.

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    • The availability check adheres to certain rules; these rules state which recipts / issues / stocks are to be considered in calculating the available quantity. For example:

      You have stock of 10.

      You have a production order = 10.

      Is the available quantity = 10 or 20?

      In the customising transaction OVZ9, you state whether you want production orders to be considered in the ATP check. If you state production orders to be considered, then you have 20 available. If you state they are not to be considered, then you have 10.

      The above is just one example from the OVZ9 transaction; there are many others. You should familiarise yourself with OVZ9. One of the other settings in OVZ9 is "Check Without RLT".

      Any requirement you have will be confirmed on or after the end lead date (RLT) regardless of the issues / receipts in the system. It is for this reason: Lets say you have a requirement in one month's time. The system fails to confirm availability. Therefore, you have not given a confirmed delivery date to the customer. However, you know in your process that a future receipt of stock will likely be able to cover a requirement so far into the future. Therefore, you want the system to automatically confirm these type of requirements. In this case, you use the "End Lead Date" to decide at which point you want requirements to be automatically confirmed. Usually, it would not make sense to have an end lead date today or at a date very close to the future. So you have 2 options:

      1) Select "Check without RLT" in OVZ9 for the relevent checking rule

      2) Extend the end lead date further into the future (by setting the relevant values in the material master - see the F4 help for the end lead date in CO09 that explains this exactly).

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