In the "Manage Fixed Assets" APP, the field "Base Unit Of Measure" can not be modified.
SAP S/4HANA Cloud
The field "Base Unit Of Measure" can be maintained when creating asset. Once you have created the asset, the field can only be display and can't be changed anymore.
Create a new asset with "Base Unit Of Measure", then transfer the old asset to the new asset through APP "Post Transfer - Within Company Code".
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