Is there a way we can add the shared users to the destination end while doing migration from google drive to box?

Migration from Google Drive to BOX
I need to have the same shared users in the destination end as they are in the remote end is there any way i can run any script between the sync process so i can update the shared users email from remote to destination end?

User configuration happens outside of rclone.

You'd configure that when you setup the shared drive.