We have a requirement where case manager can select multiple caseids and assign to a Operator.

we added checkboxes in Casemanager portal for all the rows in regional work basket ,added autocomplete textbox Operatorto and added a Assign Button.On Assign Button click we added an activity where are taking the selected caseids and calling FinishAssignment activity but it is not working.giving error as Assignment corrupted.Please can someone help in resolving this issues.Before calling finishAssignment we called pyReassignAssignment activity for assigning newAssignPage .