Hi All

I have created a managed package from Developer Org for Beta testing. This package is working fine on the Partner Enterprice Edition. Now, I want to test same package on Partner Professional to check if package works fine there or not.

When I try to install, I am getting following exception.

This app can't be installed.
There are problems that prevent this package from being installed.
Accounts Missing Organization Feature: Account.Sharing

Here is the screen shot of it.

My question is that, how to resolve this error to support Partner Professional Edition.

Thank 
you