What is grouping certificates?
If you have multiple certificates in different contracts, you can group these certificates under a master certificate.
Only certificates belonging to the same product categorization should be grouped. For example, you might have a site license for Microsoft Visio for one location and 50 per instance licenses. Or, you might have two different site licenses. You can use the default license types for grouped certificates, or you can create a custom license type. For more information, see Grouping certificates.