How to update CC02 Chng Header Long Text?

  Hello everyone,

     I'm trying to better understand how to dynamically update the long text in transaction CC02 from a custom program. I have debugged through CC02 and found that it uses SAVE_TEXT and COMMIT_TEXT so I too, have tried the same.

What I've found is that as long as a Change Header Long Text was created first in CC02, the code below works successfully without issue, and is reflected when I go into CC02 - I can see my changes.

On the other hand, if the Change Header Long Text was not already created, and I create it for the first time, this text is stored and I can successfully read it using READ_TEXT Function Modules. However CC02 does not show this saved text. Therefore, any changes made in CC02 will then overwrite my changes made in my custom program.

I have explored the INSERT parameter of SAVE_TEXT, and pass an X if the Change Header Long Text does not already exist (Determined using READ_TEXT). However, this did not seem to yield any success.

Can anyone explain why this works correctly when it is already created, but does not work correctly if I am creating the long text for the first time in my program?

CALL FUNCTION 'SAVE_TEXT'
      EXPORTING
        client          = sy-mandt
        header          = lwa_thead
        savemode_direct = c_x
*        insert          = i_new_longtxt
      TABLES
        lines           = lwa_ltext_tmp
      EXCEPTIONS
        id              = 1
        language        = 2
        name            = 3
        object          = 4
        OTHERS          = 5.
    IF sy-subrc = 0.
      CALL FUNCTION 'COMMIT_TEXT'
      EXPORTING
        object          = lwa_thead-tdobject
        name            = lwa_thead-tdname
        id              = lwa_thead-tdid
        language        = s_lang
      IMPORTING
        commit_count    = iv_updated_texts.
    ENDIF.

Useful hints or tips will be rewarded! Thank you!