Partially Confirm TO item using /SCWM/TO_CONFIRM

[Jimmy21]

I'm trying to partially confirm an item using FM /SCWM/TO_CONFIRM. I have this error:

<em><strong>Either enter quantity or confirm target = actual</strong></em><br>

<strong>LS_CONF-TANUM = 'VALUE'.
LS_CONF-PAPOS = '0001'.
LS_CONF-SQUIT = 'X'.
LS_CONF-NISTA = '300.00000000000000'.
LS_CONF-ALTME = 'KG'.
LS_CONF-WDATU = '20230921223356'.
LS_CONF-VLENR = '0010000000000000857'.
LS_CONF-NLPLA = 'PICK_POINT'.
LS_CONF-NLENR = '00100000000000000590'.</strong><b><br></b>

  CALL FUNCTION '/SCWM/TO_INIT_NEW'
    EXPORTING
      iv_lgnum = 'ABC'.                 " Lagernummer/Lagerkomplex

  CALL FUNCTION '/SCWM/TO_CONFIRM'
    EXPORTING
      iv_lgnum       = 'ABC'
      iv_qname       = sy-uname
      iv_update_task = abap_true
      iv_commit_work = abap_true
      it_conf        = lt_conf
      it_conf_exc    = lt_conf_exc
    IMPORTING
      et_ltap_vb     = lt_ltap
      et_bapiret     = lt_bapiret
      ev_severity    = lv_severity
      ev_ser_err     = lv_ser_err.

PS: I tried with SQUIT empty.

Please Can you help me?