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Perform the following steps as the NCM module administrator:
Click Configure NCM
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Click Configure NCM Fields
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Scroll to the Configurable Fields for Parts table
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Click the “Edit” button on field UnitOfMeasure
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Click the “Edit Valid Values” button at the bottom of the page
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Enter units of measure in the box labeled Field Valid Values
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Click the “Save” button on the Edit Valid Values page
Click the “Save” button on the Edit Configurable Field page