Ok thanks,Can you tell me what the steps are to prevent the access?

Again to emphasize,The assumption is these Apps are on the phones already.

Hi,What you said is blacklisting an App. The point is certain APP or APPs are already installed. I need to have a policy to stop running them.Generally, Is there a way to select Apps that CAN RUN and select others that CAN NOT RUN?thanks,Afshin

Hi I am new to Cisco Meraki.I am trying to see how I can block an App that is already on an iOS device that is assigned in System Manager.I thought Blacklisting does that. But if App is already installed Meraki App in my iOS phone says it is non-comp...