Problem passing data from object class to DPC_EXT

Hello,

In DPC_EXT i am calling like this:

create:

      object lo_ConfirmationHeader,

      data er_entity type ZCL_ZQM_CONF_MPC_EXT=>S_ConfirmationHeader.

lo_ConfirmationHeader->/iwbep/if_mgw_appl_srv_runtime~get_entity(

exporting iv_entity_name = iv_entity_name

iv_source_name = iv_source_name

iv_entity_set_name = iv_entity_set_name

it_navigation_path = it_navigation_path

it_key_tab = it_key_tab

IO_TECH_REQUEST_CONTEXT = IO_TECH_REQUEST_CONTEXT

importing er_entity = er_entity ).

then in object class there is:

  create data er_entity type ZCL_ZQM_CONF_MPC_EXT=>S_ConfirmationHeader.

  assign er_entity->* to <fs_ConfirmationHeader>.

*** here i am getting data

** and after line:

ASSIGN ls_ConfirmationHeader to <fs_ConfirmationHeader>.

**<fs_ConfirmationHeader> contain data

but after back to DPC_EXT

there is no this data in er_entity

Thanks

Lucas