How to get object_id or guid from core_bol

Hello!

I'm stuck with getting an object_id or guid of solman incident (crmd_orderadm_h).

I'm trying to find it in get_v_text_no of cl_aic_im_t_timereporting_cn01.

Now I have access to core_bol and entity manager:

DATA: LR_BTADMINH    TYPE REF TO CL_CRM_BOL_ENTITY,
      lr_collection  TYPE REF TO if_bol_entity_col,
      lr_entity      TYPE REF TO cl_crm_bol_entity,

     lv_time_spent  type CRMT_TIMEREP_DURATION,

      lo_bol_core TYPE REF TO cl_crm_bol_core.

  CALL METHOD cl_crm_bol_core=>get_instance
    EXPORTING
      iv_display_mode_support = abap_false
    RECEIVING
      rv_core                 = lo_bol_core.
data : lv_result TYPE REF TO CL_CRM_BOL_ENTITY_MANAGER,

lr_header type REF TO IF_BOL_ENTITY_COL,
       lr_header2 type REF TO CL_CRM_BOL_ENTITY,
       lv_object_id type CRMT_GENIL_OBJECT_ID.

lv_result = lo_bol_core->get_entity_manager( ).

Please advise any further directions.

Regards,

Ayrat.