Symptoms
"Provisioning "AsyncOperation" for APS application Office 365" task fails:
500 Internal Server Error
[ApplicationUnknownError] Provisioning: resource cc343a91-...e6fb57 of type 'asyncOperations'
Unable to connect to the remote server.
sitelog error:
ERROR aps_endpoint: System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 192.168.231.47:5224
StackTrace: at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
...
Cause
Business Automation API is not available for the Office365 Endpoint host.
Resolution
Check connection between Office365 Endpoint host and Business Automation API interface.