How to update CC02 Chng Header Long Text?

Question

  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!

Answer 1

Hi Custodio,
Thanks for the reply. To further elaborate, the parameters I've tried passing through lwa_thead are the following:
CONSTANTS:
    w_tdid            TYPE thead-tdid       VALUE 'AENR', " Change Master Table
    w_tdobject        TYPE thead-tdobject   VALUE 'CHANGE', " Static Object
    w_linesize        TYPE thead-tdlinesize VALUE '72', " 72 characters per line
    w_tdform          TYPE thead-tdform     VALUE 'ECM_LTXT', " Form Name in CC02 Header Long Text
   * Setup header information
  lwa_thead-tdid        = w_tdid. " AENR (Change master table)
  lwa_thead-tdobject    = w_tdobject. " CHANGE
  lwa_thead-tdname      = w_tdname. " Client + ECM
  lwa_thead-tdspras     = s_lang. " Language
  lwa_thead-tdlinesize  = w_linesize. " Characters per line
  lwa_thead-tdform      = w_tdform. " Form ECM_LTXT
  lwa_thead-TDLUSER     = SY-UNAME. " Changed by User
  lwa_thead-TDLDATE     = SY-DATUM. " Date changed
  lwa_thead-TDLTIME     = SY-UZEIT. " Time changed
  lwa_thead-TDLRELES    = SY-SAPRL. " SAP Release
  lwa_thead-TDTXTLINES  = l_records. " Number of records
For testing purposes, I even mocked the following tran code and program name from CC02 in tdmacode1 to see if that triggered a different result. This did not visibly change anything as far as I could tell.
    w_tdmacode1       TYPE thead-tdmacode1  VALUE 'CC02SAPMC29C',
    lwa_thead-tdmacode1   = w_tdmacode1.