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Manufacturer Part No process

Hi All,

In transition OMT0 I have activate ‘Manufacturer Part Number’ process in test system to simulate the scenario. I have created the material with material type HERS and in that material ‘Int. material number’ (MARA-BMATN) assigned. After simulating scenario as business is not willing to go for this process I want to deactivate ‘Manufacturer Part Number’ in OMT0 but its showing message “At least one Int. material no. has been used,the indicator cannot be cancelled”.

In the defined material (HERS material type) I am trying to remove ‘Int. material number’ (MARA- BMATN) but its mandatory field so didn’t allow to keep it blank. I tried to convert this field as optional in transaction OMS9 in field selection group 123 for material type HERS (Done optional for all field references except MM03; MM19, MMVD) but the strange thing which I noticed is though it’s maintained as optional ‘Int. material number’ (MARA-BMATN) appears as mandatory in MM01/MM02 transactions. Same time the other field MARA-MFRPN ‘Manufacturer Part Number’ which belongs to same group 123 appears as optional.

I have two questions:

  1. Why system not converting ‘Int. material number’ (MARA- BMATN) as optional when the setting in OMS9 is set as optional entry.
  2. Please suggest how I can deactivate ‘Manufacturer Part Number’ process in OMT0

Please give your suggestions, thank you for support.


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1 Answer

  • Jan 17, 2017 at 01:09 PM

    the system has to ensure a kind of integrity.

    Changing customizing is nothing else than changing the customizing. there is no automatically triggered subsequent job that makes your master data consistent with the new customizing settings. Hence there is a check which checks if you have master data using this setting and prevents then the removal to avoid an inconsistency and data loss.

    You should have done such tests in a sandbox, a system that does not affect the production landscape where even a development system is part of.

    Now you can only clear this situation with archiving, first all the transaction data that you created, then followed by the master data, and once all materials have bee removed the system let you change the setting again.

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