I believe OBS streamkey is basically the name of the stream in Wowza. As this is an RTMP server publishing to Wowza, we will simply accept any stream name by default. If you want to restrict it then you can enable password authentication in Incoming Security and maintain a list of publishers who would need to authenticate. Or you could look at the
ModuleOnConnectAuthenticate2 module where user credentials are included in the RTMP URL, e.g.
Again you would maintain a list of users that are allowed to authenticate before an inbound RTMP stream is accepted.
I'm not sure what is failing there or what you are trying to do. Please provide more detail specifically relating to the Wowza component and what errors you are receiving and we can see if we can help further.