So like I mentioned in a previous post, I have been trying to help people out on VMNT or VMware Community forums. One of the posts that I helped out on involved someone who needed help adding a VM to inventory after it was restored.
Here is how you can add a VM into inventory if it has been removed for some reason
From vCenter, you will need to click on a ESXi hosts
Then click on the Configure tab
Then click on Datastores and select the Datastore that the VM is stored on.
Right Click the Datastore and select Browse Files
Locate the VM folder, and select the .VMX file
Right Click on the .VMX file ans select Register VM
This will open the Register Virtual Machine wizard. You will need to set the name (which should be pre-populated and select the Data center and click Next.
Select the Cluster and click Next
Select the Application Pool and Click Next
Click Finish to exit the Wizard
After you exit the Wizard you will see the Virtual Machine added to Inventory.
As always I hope that this is helpful for someone.