Mapi shared contact Permission

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C++

VisualC++

MAPI

Is it possible to modify shared contacts(another user's) contacts without his/her writing permission?

Defiantly answer is No.
This is correct when you try to modify using outlook But what I found is when i modify same contact with extended mapi it simply modify that contact in my outlook without reflecting in appropriate user's outlook.

Is it possible to get notification when there is not write permission?