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Julien_Hacquard
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Joined Feb 28, 2023
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Re: MCAS session policy with Conditional Access is blocking accessin external shares
Keith_Fleming Thanks for your message. In my case i would like be redirected to the shared resource. The only solution found is to deactivate conditional access for MCAS session policy on the user. So i decrease our security to be able to collaborate with other tenants; This is not a desirable solution.2.1KViews0likes2CommentsMCAS session policy with Conditional Access is blocking accessin external shares
Hi, I have a strange behavior between a test tenant and qualification tenant. Technical context On the source tenant MCAS is activated with session policy for all the MS services. On the target tenant MCAS is not enabled. User A from the source tenant is under conditional access policy to force MCAS session policy control. User B from the source tenant is not. Now the strange behavior When user B tries to access a shared resource from the target tenant, he's able to access it. When user A tries to access a shared resource from the target tenant, he's presenting a page with "Request Access" explaining "You need permission to access this site". When we look at the traces (F12 > Network) for both connection context User B nothing in particular User A all the URLs are in form "*.mcas.ms" When we deactivate the CA for the user A No more issue with the access to the shared resource All the URLs are normal without "*.mcas.ms" to confirm activate CA and MCAS session policy for user B create the same issue with the permission access page so it really comes from here. How and why MCAS session policy control from source tenant can block access to shared resource from target tenant ? Is it incompatible usage ?Solved2.4KViews0likes4Comments
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