problem in shadow catcher compositing mood

[mostafa]

hello i have problem in get clean alpha without the plane have shadow catcher MTL on in

i try everything to render on black in composite but i keep see the plane in alpha mode or reflect of back plate on plane i need to see the shadow only

[maru]

I am sorry, but I could not fully understand your message. Can you please post some example images, and explain what is expected?
If you do not want reflections to be visible in your shadowcatcher, you should make sure that reflectivity is disabled for that shadowcatcher material.