How to get back the enhancement implementation?

Question

Hi, when I tried to change ENHANCEMENT-SECTION gn_delivery_create_02 in function GN_DELIVERY_CREATE, there is an implement to OIO_SAPLV50S:
Post deliveries
ENHANCEMENT-SECTION     gn_delivery_create_02 SPOTS es_saplv50s.
  PERFORM gn_lieferungen_buchen.
END-ENHANCEMENT-SECTION.
$$-Start: GN_DELIVERY_CREATE_02----$$
ENHANCEMENT 80  OIO_SAPLV50S.    "active version
    if if_oio_simulate is initial.
      perform gn_lieferungen_buchen.
    endif.
ENDENHANCEMENT.
$$-End:   GN_DELIVERY_CREATE_02----$$
I modified ENHANCEMENT 80 and actived it, but when try to change it again, I click the menu "undo" by mistake, then the ENHANCEMENT 80  OIO_SAPLV50S was disappeared.
This implementation was created by Oil and Gas business function set, our system doesn't need it, but the code should not disappear. And we still can see it in SE19, it is belong to Enhancement Implementation OIO_SAPLV50S.
How can I make the code display again?

Answer 1

Hi,
Have you checked the version for the program you undo the enhancement ? If I understand you correctly you deleted the enhancement spot in main program (which also means access key was entered before for this program). In this case previous versions maybe helpful.
Regards,