Hi 
I am trying to add vcac 6.0 host in vCenter Orchestrator by using vcac url ( "https://vcac-app.vmcloud.com/" ) and vcac credentials but it is throwing some exception that page not found details of the error is shown below :-
"com.vmware.o11n.plugin.dynamicops.ServiceException: HTTP/1.1 404 Not Found : <html><head><title>VMware vFabric tc Runtime - Error report</title><style><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 404 - /repository/Data/ManagementModelEntities.svc/</h1><HR size="1" noshade="noshade"><p><b>type</b> Status report</p><p><b>message</b> <u>/repository/Data/ManagementModelEntities.svc/</u></p><p><b>description</b> <u>The requested resource is not available.</u></p><HR size="1" noshade="noshade"><h3>VMware vFabric tc Runtime</h3></body></html> (Workflow:Add a vCAC host / Add a VCAC host (item0)#54020) "
I also tried to add vcac 5.2 host and it's working perfectly fine so I am not getting what's wrong with vcac 6.0 .. 
or any customisation is
Please help me to resolve this issue ..
Thanks !!