we have used tab layout in portal. we have a button in an assignment ( suppose assignment is opened in tab 1 ) and on click of this button we are opening third party website in new tab ( i.e. tab 2 ) . when we submit this third party website it is opening entire pega portal inside tab 2. what we need is that the control come back to the case (assignment ) and not to the pega portal. Is there any way we can implement this feature. please let me know.

configuration used on click of button - run activity ( call closeworkitem) , harness ( new document)

***Edited by Moderator: Pallavi to update platform capability tags***