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author's profile photo Former Member
Former Member

No batch derivation if characteristics are part of material specification

Hello,

I got this major problem with my batch derivation processes:

the example is following: the characteristics A and B are mesured for the raw material X which is batch controlled and consumed for product Y.

As result of GR posting for the production order for product Y we get an inspection lot for characteristic C.

The values of characteristics A and B have to be derivated when the usage decision is done for the inspection lot of the product.

It works fine with following restrictions: in order to get automatically evaluated (value transfer from inspection lot to the batch) characteristic C in the batch of product Y I have to maintain the material specification for product Y.

If characteristics A and B are included (means also used) in the material specification of product Y- the batch derivation does not work, the values of characteristics A and B are not transfered to the batch of product Y - and this causes problems. So my question is: how to avoid this system behavior? How can we enable batch derivation for characteristics which are included in the material specification? I assume there is something hidden in settings for material specification or whatever I did not see.

It can not be accepted that these characteristics we want to use in batch derivation can not be used in material specificatins.

This is needed (e.g. for batch determination, certificates etc.).

What to do, how to solve the problem?

thanks a lot in advance for all helpful hints

Kurt

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4 Answers

  • author's profile photo Former Member
    Former Member
    Posted on Jul 27, 2009 at 11:45 AM

    Hi Kurt,

    Please try following:

    Maintain the condition record with BOM (DVCO) with the events :Release Process/Production order" and Manual derivation". Now while order creation of the product "Y", carry out the batch determination for raw material "X" and then release the order. As soon as you release the order system will create the Batch for product "Y" and will carry out the batch derivation for characteristic "A" and "B". If the derivation does not take place automatically you can carry out manual dervation step for prodct batch after releaseing and saving of order. After batch derivation you can go for confirmation, quality inspection and goods receipt. I hope this will help in solving your problem. Please revert back in case of any further issue.

    Best Regards,

    Uday

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    • Former Member

      @Uday : Hello, this is just to confirm that I got the same problems when I trigger the derivation by production order release event.

      It does not work as well, the result is simply the same. For characteristics part of Mat spec the derivation does not work.

  • author's profile photo Former Member
    Former Member
    Posted on Jul 27, 2009 at 11:45 AM

    Hi,

    As per my understanding, the system is behaving normally. Moreover, if at the time UD, something (spec) has to be checked and inspected, there is no point in deriving the vlaues from mother batches as it can lead to incorrect data. Also deriving data this way would make the inspection loose its importance.

    But still if business demands, you can try BADIs available or ABAP Development for populating the fields at the time of UD.

    However, if you find a solution, please post it here too. Many of us would be benefitted by that.

    Regards,

    Rohit

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    • Former Member

      @Rohit : we need to check A and B for the raw material and do not check it for the product again. If the values are out of spec - such a batch will not be used for product Y. But we need the values on the level of poduct Y. . - I don't see any problems with the importance of inspection lots, for product Y we need only the additional value of characteristic C, the decision has to be done for this inspection, means also for this characteristic only, nothing else. This is a common process, we don't want to double work, no need to decide for characteristics A and B again. So it has to be possible without additional programming, that's what I would call 'normal behaviour'.

      Why does an simply existing material specification stop the transfer of characteristic's values?

      (The other mystery I am struggling with is, that I need to maintain material specification in order to get value transfer from inspection lot the batch class - I have dropped that into another thread in the QM forum  - subject is called: problems with inspection result transfer to batch classification).

      - this is now not valid anymore, my problem there is solved, it was a wrong setting, I hope such a solution is solving my main derivation problem as well!

      I gonna try the other way again, but as far as I remember, the same problem appeared when I was using the derivation while releasing the production order, accidently I tested this first, if it helps I will let you know.

      Edited by: Kurt Wichert on Jul 27, 2009 2:41 PM

      Edited by: Kurt Wichert on Jul 27, 2009 6:34 PM

      Edited by: Kurt Wichert on Jul 27, 2009 6:36 PM

  • author's profile photo Former Member
    Former Member
    Posted on Aug 06, 2009 at 09:10 AM

    Hello,

    this is just to keep updated the interested ones of you : I am still waiting for the solution from SAP - it got to second level now, moving from QM department to the classification department - and I hope a developer will offer some coding next. Since we have the simple standard system I am a little surprised that this topic wasn't figured out earlier, to use material specifications is a common process.

    Anyway- stay tuned

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  • author's profile photo Former Member
    Former Member
    Posted on Sep 10, 2009 at 06:42 AM

    yup, finally I got reply from developement department. They say that the concept of SAP does not support derivation of characteristics which are used in the specification. There is an internal check which blocks it.

    You can switch off this check by setting the parameter 'no_check_of_qm_char'. You can do this in the EXIT_SAPLV01Z_012 .

    Unfortunately there is no way to set this for selected organisation units (plant .... ) or materials or anything else like this - at least we did not find any possibility in this exit.

    If anybody finds a way, please let me know.

    I did not take care anymore of that wrong output in the derivation monitor - sorry, but I gave up on this, there is still something wrong.

    Also for this topic: if anybody gets a solution - let us know!

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