The underlying products (vSphere, vSAN & NSX) that run within VMware Cloud on AWS (VMC) are constantly being improved with new capabilities and enhancements. As a service, VMC is updated more frequently than a traditional on-premise environment and one huge benefit for our customers is that they get to access all the latest and greatest features of the platform!
Yesterday, I came to learn about some improvements that we had made to our vSphere Tagging infrastructure to start publishing vCenter Server Events for when a vSphere Tag is attached or detached from an inventory object such as a Virtual Machine. This has been a frequently requested feature by our customers, especially for auditing purposes and this also enables the ability to perform additional actions through the use of a vCenter Alarm.
UPDATE (10/13/20) - vSphere 7.0 Update 1 now includes vCenter Events for both vSphere Tag Attach/Detach operations. For complete list of out of the box vCenter Server Events, you can refer to this Github repo.
In the vSphere UI for a VMC vCenter Server, you can now see these new tagging events by selecting the vCenter Server inventory object and then go to Monitor->Events and filter by "attached tag" or "detached tag".