Adding 2 Users as Buddies in the Zextras Chat

Hi

I am trying to add users as buddies from the backend (CLI) using the following command

zxsuite chat doAddBuddies user1@xyz.com user2@xyz.com

When I do this I am able to see user2 in user1 but not vice versa.

When i try to add user1 as buddy to user2 from frontend (zimbra webgui) it works.

Can someone let me how to add 2 users as buddies from CLI ...

Thanks.