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Ecm optional

Hi, we would like to make ecn as optional for bom and routing changes. Meaning system should accept ecn with or without change numbers. Please advise what settings are required to achieve this? Thank you.

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  • Posted on Jul 08, 2020 at 10:51 AM


    try OS27 to use this indicator to control when history requirement applies to new variants or alternatives in a BOM group.

    and try too OS25, you define whether bills of material with a certain BOM usage and BOM status must be changed with history, that is to say, using engineering change management.

    After, for Routing try OP5A in the screen group "PP task lists: initial screen" and field "Change Number" insert a new value in "Transaction Code" - "CA01" and "CA02".

    Paulo Zaccaro

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  • Posted on Jul 13, 2020 at 06:38 AM


    ECM is an optional in BOM and Routing creation and change.

    You can make it mandatory in BOM with user level authorization and in routing by OP5A settings.

    Please refer SAP KBA 2748036 - How to make the Change Number (AENNR) mandatory for BOM

    The BAdI BOM_EXIT Method START_SCREEN_CHECK can be used to carry out customer specific validations for the individual screens on the BOM transactions.

    Best Regards,


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