To continue using product functionality, you must assign appropriate licenses to assets in evaluation mode, or assets with expiring licenses. When you upgrade a license edition, combine, or split licenses in My VMware, you must assign the new licenses to assets. You can assign licenses that are already available, or create new licenses and assign them to the assets in a single workflow. Assets are vCenter Server systems, ESXi hosts, Virtual SAN clusters, and other products that integrate with vSphere .