In order to have your ILMT license utilization reports accurate, you are required to use eligible virtualization, operating systems and processor types. In addition, each discovered software component must be assigned to a software program license or alternatively excluded or suppressed to match your license entitlements. ILMT automatically assigns (bundles) newly discovered software components to a product. However, this automated bundling process does NOT replace the manual work that needs to be done. This automated bundle process is there to help you to narrow down the possible options based on the detected infrastructure, part numbers and other relations discovered, but it still requires you to confirm or exclude the discovered software components.
Take for example the component IBM DB2:
"DB2 could be a standalone product or could be part of Spectrum Protect. Each bundle-option has a different effect on your license report. When DB2 is treated as a separate product, it requires a DB2 license. When DB2 is bundled to Spectrum Protect having a Terabyte metric, it will have no effect on your license usage."
So, the bundling process should be treated carefully. When a component is incorrectly bundled, it might not be eligible for sub-capacity licensing.