Saving custom fields in production order

1. In additional data screen

   1.PPCO0012->EXIT_SAPLCOKO1_001->ZXCO1U11

   ​ ​ ci_aufk-zxxx = i_caufvd-zxxx. ​

   2.PPCO0012->EXIT_SAPLCOKO1_002->ZXCO1U12

   ​ ​ e_coci_aufk-zxxx = ci_aufk-zxxx. ​

2. In standard screen

IF_EX_WORKORDER_UPDATE~AT_SAVE

CLEAR l_caufvd.
MOVE-CORRESPONDING is_header_dialog TO l_caufvd.
l_caufvd-zxxx = is_header_dialog-yyy.
CALL FUNCTION 'CO_BT_CAUFV_UPD'
   EXPORTING
     caufvd_upd = l_caufvd.