Update field "DLV_BLOCK" using BAPI_SALESORDER_CHANGE

Hi friends,

I am using BAPI_SALESORDER_CHANGE and BAPI_TRANSACTION_COMMIT to remove delivery block from an Order.

We are updating the below parameters and then calling the bapi.

st_header_change-dlv_block = ' '.

st_header_change_x-updateflag = 'U'.

st_header_change_x-dlv_block = 'X'.

CALL FUNCTION 'BAPI_SALESORDER_CHANGE'

EXPORTING

salesdocument = v_salesdocument

order_header_in = st_header_change

order_header_inx = st_header_change_x

TABLES

return = t_return.

READ TABLE t_return WITH KEY type = 'E'.

IF sy-subrc <> 0.

CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'

EXPORTING

wait = 'X'.

ENDIF.

But it's still wrong...

The field keeps the same value.

Thanks in advance.

Willian.