Second steam product key with same result.
This is not caused by the beta not being live, as I tried it while other friends on my steam list were playing.
1st steam code sent - account no authorized. 343 send out friend invites, so I removed beta properly from steam’s support page, then added the friend invite code. Still the same result.
My beta review? Game is trash, especially searching forums and seeing how many others experiencing this exact issue.
Since I see the response to those is ‘beta wasn’t live’, I’ll repeat that this happened while others on my friends list were playing, at the time the beta was running.