My problem was related to the license key I was using:
My understanding was that vCAC was included with te vCloud Suite Enterprise Edition, so I was using my vCloud Suite license.
But I found out that this license does not activate all the features on vCAC 6.0.
After I applied an evaluation key for vCAC 6.0 Advanced, the NetApp Endpoint feature (and many more) became immediately active.
Hope this helps with your problem too.
Any updates on this issue?
Looking at the suite comparison (https://www.vmware.com/products/vcloud-suite/compare.html) it shows that vCloud Enterprise should come with vCAC Enterprise, so that is very odd.
Ok so here it is:
I was told it is a bug with VCAC 6. I had a vCloud Suite license that should give me access but it is not working. A Standalone evaluation VCAC Advanced license DOES work! Only took 3 months....nice.