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How to replace wrong unit of measure


When our system was set up, the internal UoM of Square Centimetre was CMK. From that on, this UoM has been used in many areas, like material master, production order, sales document, material document...

Now we discover that CMK is wrong, the correct internal UoM must be CM2, we have to delete CMK and replace it with CM2 because there should not be 2 UoM for square centimetre.

My question is: How to replace CMK in existing documents such as material document or closed production order? I've been searching for standard SAP report but result is still negative.

If you've ever encountered similar problem, please share your solution.

Thank you,


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3 Answers

  • Best Answer
    Posted on Dec 10, 2015 at 10:38 AM

    Do not delete existing (CMK) unit of measure from your system. It can be cause of inconsistent.

    That does mean you have to close all data where unit of measure is used. Then you need to change/create new data. Honestly, that will be a huge task. Please search in SCN for individual changes.

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  • Posted on Dec 10, 2015 at 10:53 AM

    Hi, How many documents are there in the system ? How ever you create the new UOM with the required specification . Do not delete the old uom . Since all the documents are created and most of them are closed system will not allow to remove the UOM in the master data . Add the new UOM in the system . and into the master data . and use the master data in the system . with new UOM . Regards,

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  • Posted on Dec 10, 2015 at 01:28 PM

    This can only be done with a system landscape optimization program which analyses the data system wide and exchanges the value hard in the database.

    There are already many provider in market who offer such methods, SAP itself does too: find the homepage in

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