BOM删除

同一个程序一次BOM新建又删除又新建会报stpu重复，dump?所以删除stpu表不是同步删除？？？

CALL FUNCTION 'CSAP_MAT_BOM_DELETE'
EXPORTING
material = lv_material
plant = lv_plant
bom_usage = lv_bom_usage
alternative = lv_alternative
valid_from = lv_valid_from
change_no = lv_change_no
fl_commit_and_wait = 'X'
IMPORTING
fl_warning = ls_fl_warning
EXCEPTIONS
error = 1
OTHERS = 2.
IF sy-subrc <> 0.
CALL FUNCTION 'MESSAGE_TEXT_BUILD'
EXPORTING
msgid = sy-msgid
msgnr = sy-msgno
msgv1 = sy-msgv1
msgv2 = sy-msgv2
msgv3 = sy-msgv3
msgv4 = sy-msgv4
IMPORTING
message_text_output = lv_zmessage.