Any normalization that has occurred on a model can be reverted by using which feature?

The Revert Normalization UI Action is the correct choice because this feature specifically allows users to revert any normalizations that have been applied to a model in the Hardware Asset Management module of ServiceNow. Normalization is the process of standardizing and categorizing assets to ensure consistent reporting and management. However, there may be instances where a normalization needs to be undone due to errors or changes in the data.

By using the Revert Normalization UI Action, users can effectively restore the model to its previous state, ensuring that the data reflects the correct attributes and classifications. This action can be particularly useful in maintaining accurate hardware asset records, as normalization is an ongoing process that can evolve with the organization's needs.

In contrast, the other options do not provide the same capability. While it might seem intuitive to consider the Rollback Normalization Business Rule or an Undo function, those features do not explicitly exist within the framework of ServiceNow’s Hardware Asset Management. Moreover, the assertion that normalizations cannot be reverted is incorrect, as the UI Action is specifically designed for this purpose. Thus, understanding the importance and functionality of the Revert Normalization UI Action reinforces its critical role in effective hardware asset management.