Picking list Standard SSRS report

Hi im trying to add some custom field to the packing list report of sales order
controller class WmsPickingList_OrderPickController and data provider class WRE_WmsPickingList_OrderPickDP i attach my custom report design to the controller class


but when i used to run this report from the frontend im getting standard design only no custom design of mine is there

What did you find when you debugged the code? For example, do you see the original report name in SrsReportRunController.runReport()? If so, it means that the value you provided was overwritten before executing the report, and the most likely place is loading of previously used values. Check SrsReportRunController.unpack() to check whether it’s the case or not.