Issue while triggering same workflow activity to multiple users

Hi,

I want an activity to be assigned to multiple users, so that all of them can see the item in their inbox, and will be navigated to the transaction from there.

For this I have a container element with multiline property checked, and usernames are passed to this container element.

And in the miscellaneous tab of the activity, I am passing the container element having multiple users to Field 'Multiline Element'.

But instead of one Activity , 2 items are listed in each users Inbox.

How can I resolve this.

Thanks,

Vivek.