OBIEE UI can use several components as clients and they are all Web based. So i guess that the communication with the backend servers are made using HTTP protocol.

When you say that OBIEE application is not recorded, is it only a subset of the application or all the transactions from the login to the logout?

In general, there are two main reasons for NeoLoad to not record an application. Either the application is not using the NeoLoad proxy during the recording or it is not using the HTTP protocol to communicate with backend servers.

If nothing is recorded, you should check the proxy settings in your browser when you are recording with NeoLoad. Make sure that it is "localhost:8090".

If only a subset is recorded but you are sure that it is still HTTP protocol, you can use the Tunnel mode for the recording.

I hope it may help you.