Delete multiple WBS for a project ID

* Initialization of BAPIs
  CALL FUNCTION 'BAPI_PS_INITIALIZATION'.

  CALL FUNCTION 'BAPI_BUS2054_DELETE_MULTI'
    EXPORTING
      I_PROJECT_DEFINITION  = G_F_PROJECT_DEF
    TABLES
      IT_DELETE_WBS_ELEMENT = P_G_T_DELETE_WBS  “(All WBS which needs to be Deleted)
      ET_RETURN             = P_G_T_RETURN.

  CLEAR G_F_ERROR.
  LOOP AT P_G_T_RETURN INTO G_R_RETURN.
    IF G_R_RETURN-TYPE CA G_C_AEX."Error Type A E or X
      G_F_ERROR = G_C_X.
    ENDIF.
  ENDLOOP.

* Error handling / end processing
  IF G_F_ERROR IS INITIAL.

*-- Post changes
    REFRESH L_T_RETURN2.
    CALL FUNCTION 'BAPI_PS_PRECOMMIT'
      TABLES
        ET_RETURN = L_T_RETURN2.
*-- Check for errors
    LOOP AT L_T_RETURN2 INTO G_R_RETURN.  "
      IF G_R_RETURN-TYPE CA G_C_AEX.
        G_F_ERROR = G_C_X.
      ENDIF.
    ENDLOOP.
    APPEND LINES OF L_T_RETURN2 TO P_G_T_RETURN.
*-- Everything ok
    IF G_F_ERROR IS INITIAL.
      CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
        EXPORTING
          WAIT = G_C_X.
      COMMIT WORK.
    ELSE.
      CALL FUNCTION 'BAPI_TRANSACTION_ROLLBACK'.
      REFRESH L_T_RETURN2.
      CALL FUNCTION 'BAPI_PS_PRECOMMIT'
        TABLES
          ET_RETURN = L_T_RETURN2.
      APPEND LINES OF L_T_RETURN2 TO P_G_T_RETURN.
      REFRESH L_T_RETURN2.
      CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'.
    ENDIF.
* Error occured
  ELSE.
    CALL FUNCTION 'BAPI_TRANSACTION_ROLLBACK'.
    REFRESH L_T_RETURN2.
    CALL FUNCTION 'BAPI_PS_PRECOMMIT'
      TABLES
        ET_RETURN = L_T_RETURN2.
    APPEND LINES OF L_T_RETURN2 TO P_G_T_RETURN.
    REFRESH L_T_RETURN2.
    CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'.
  ENDIF.