Zammad availability

I tested UCS 5.x with the VirtualBox image successfully and managed to install and run Zammad flawlessly. I now wanted to that in our production environment with the ESX image from the website. I installed everything, did some Updates, but Zammad is missing in the appcenter? Is it possible to install it again, if yes: How?

Thanks in advance!

I believe Zammad removed their app from the app store. I was testing it at some point as well and IIRC their was a notice posted about that somewhere. You could probably install it manually but I have not tried. I just abandoned it myself since I never started using it.