Some tags may not contribute to their parent products' usage, depending on their configuration. Due to this, there might be scenarios where product-level visualizations do not show quantities. To determine if a tag will contribute to its parent product's usage, go to the Licenses tab > Tag-Level licenses table and refer to the Tag Report As field. Any tag marked as Child (count separately) will not contribute to the parent product’s usage.
Tag usage can also be viewed at the Tag-Level Usage section at the bottom of the Usage tab.