Changing Inbound delivery using DELVRY03 IDOC

Hi All,

As per Customer requirement we are getting data from proxy and internally in ECC we creating or updating ro deleting INBOUND Delivery  using  DELVRY03 IDOC type.

For changing the existing inbound delivery I have filled the all required segments. But instead of updating Existing delivery it is creating new inbound delivery.

In code I have filled the below segments.

E1EDL20

E1EDL18 CHG(For changing Inbound delivery).

E1EDT13 007

E1EDL24

E1EDL43 V

E1EDL41 001

I am using below FM to create Inbound delivery or Changing inbound deliver or Deleting Delivery.

CALL FUNCTION 'IDOC_WRITE_AND_START_INBOUND'

     EXPORTING

       i_edidc        = rw_edidc

       do_commit      = c_charx

     IMPORTING

       docnum         = lv_docnum

     TABLES

       i_edidd        = rt_edidd_10562

     EXCEPTIONS

       idoc_not_saved = 1

       OTHERS         = 2.

Could you please provide the suggestions on this.Is there any qualifier for changing inbound delivery.

Thanks,

Satya.