Is it possible to configure an audience that says something like "Current site is in PreProduction environment" Or is the only thing we can do is to allow inactive tests to show up in these environments?
You can always create an audience using rule based on Site Pages where you may say that Current Page Domain should match your PreProd Domain.
I am not sure if I follow you. Could you elaborate a bit more as to exactly where you feel challenged and if you were to give a solution, how would you have given?
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Hope this helps! In the meantime, if you have any other follow up questions, feel free to post them here, or close out the thread if you've got the info you needed. Thanks!