方法参数定义：
方法源代码：
METHOD GET_ORDER_ERROR_MESSAGE_OPT. DATA: ls_log_filter TYPE bal_s_lfil, ls_extnumber TYPE bal_s_extn, ls_object LIKE ls_extnumber, ls_subobject LIKE ls_extnumber, lt_log_header TYPE balhdr_t, lt_allmsgs TYPE bal_t_msgh, ls_msg TYPE bal_s_msg, ls_log TYPE crmt_odata_task_logs, ls_protype LIKE ls_extnumber. FIELD-SYMBOLS: <order_guid> TYPE crmt_object_guid, <msg_handler> LIKE LINE OF lt_allmsgs, <log_header> LIKE LINE OF lt_log_header. LOOP AT it_order_guid_tab ASSIGNING <order_guid>. ls_extnumber-sign = 'I'. ls_extnumber-option = 'EQ'. ls_extnumber-low = <order_guid>. APPEND ls_extnumber TO ls_log_filter-extnumber. ENDLOOP. ls_object-sign = ls_subobject-sign = ls_protype-sign = 'I' . ls_object-option = ls_subobject-option = 'EQ'. ls_object-low = 'CRM_DOCUMENT'. APPEND ls_object TO ls_log_filter-object. ls_subobject-low = 'SINGLE'. APPEND ls_subobject TO ls_log_filter-subobject. ls_protype-option = 'LE'. ls_protype-low = '2'. " priority very important & important APPEND ls_protype TO ls_log_filter-probclass. CALL FUNCTION 'BAL_DB_SEARCH' EXPORTING i_s_log_filter = ls_log_filter IMPORTING e_t_log_header = lt_log_header EXCEPTIONS log_not_found = 1 no_filter_criteria = 2. CHECK sy-subrc = 0. CALL FUNCTION 'BAL_DB_LOAD' EXPORTING i_t_log_header = lt_log_header IMPORTING e_t_msg_handle = lt_allmsgs EXCEPTIONS no_logs_specified = 1 log_not_found = 2 log_already_loaded = 3. CHECK sy-subrc = 0. DATA: lt_logh TYPE bal_t_logh, ls_mfil TYPE bal_s_mfil, lt_cfil TYPE bal_t_cfil, ls_cfil LIKE LINE OF lt_cfil, lr_field LIKE LINE OF ls_cfil-t_range, lr_level LIKE LINE OF ls_mfil-detlevel. LOOP AT lt_log_header ASSIGNING <log_header>. INSERT <log_header>-log_handle INTO TABLE lt_logh. ENDLOOP. lr_level-sign = 'I'. lr_level-option = 'LE'. * default level - employee, refer to FM CRM_ORDER_VALUE_RANGE_CHECK for detail lr_level-low = '3'. APPEND lr_level TO ls_mfil-detlevel. ls_cfil-tabname = 'CRMT_MSG_CONTEXT'. ls_cfil-fieldname = 'INACTIVE'. lr_field-option = 'EQ'. lr_field-sign = 'I'. lr_field-low = space. APPEND lr_field TO ls_cfil-t_range. APPEND ls_cfil TO lt_cfil. CALL FUNCTION 'BAL_GLB_SEARCH_MSG' EXPORTING i_t_log_handle = lt_logh i_s_msg_filter = ls_mfil i_t_msg_context_filter = lt_cfil IMPORTING e_t_msg_handle = lt_allmsgs EXCEPTIONS msg_not_found = 1 OTHERS = 2. CHECK sy-subrc = 0. LOOP AT lt_allmsgs ASSIGNING <msg_handler>. CLEAR: ls_msg. CALL FUNCTION 'CRM_MESSAGES_GET_MSG_INFO' EXPORTING is_msg_handle = <msg_handler> IMPORTING es_msg = ls_msg EXCEPTIONS OTHERS = 99. CHECK sy-subrc = 0. * message priority and message type are two different perspective so here we still need to filter by message type CHECK ls_msg-msgty = 'E'. CLEAR ls_log. ls_log-msgid = ls_msg-msgid. ls_log-msgno = ls_msg-msgno. ls_log-msg_type = ls_msg-msgty. READ TABLE lt_log_header ASSIGNING <log_header> WITH KEY log_handle = <msg_handler>-log_handle. ASSERT sy-subrc = 0. ls_log-header_guid = <log_header>-extnumber. MESSAGE ID ls_msg-msgid TYPE ls_msg-msgty NUMBER ls_msg-msgno WITH ls_msg-msgv1 ls_msg-msgv2 ls_msg-msgv3 ls_msg-msgv4 INTO ls_log-log_msg. APPEND ls_log TO et_messages. ENDLOOP. ENDMETHOD.
用到的 Function Module BAL_GLB_SEARCH_MSG 介绍：
BAL_GLB_SEARCH_MSG 的参数包括 I_MSGID（消息 ID）、I_MSGNO（消息编号）、I_MSGV1 到 I_MSGV4（消息变量）、E_LOGNUMBER（日志编号）和 E_LOG_HANDLE（日志句柄）。当你使用这个 Function Module 查找消息时，你需要提供消息的 ID 和编号，你也可以选择性地提供消息变量。Function Module 会返回找到的消息的日志编号和日志句柄。
举个例子，假设你在运行某个 SAP 事务时遇到了一个错误消息，这个消息的 ID 是 ZMYMSGID，编号是 001，并且它有一个变量 VAR1。你可以使用 BAL_GLB_SEARCH_MSG 来查找这个消息：
DATA: lv_lognumber TYPE balloghndl, lv_log_handle TYPE balloghndl. CALL FUNCTION 'BAL_GLB_SEARCH_MSG' EXPORTING i_msgid = 'ZMYMSGID' i_msgno = '001' i_msgv1 = 'VAR1' IMPORTING e_lognumber = lv_lognumber e_log_handle = lv_log_handle. IF lv_lognumber IS INITIAL. WRITE: '没有找到匹配的消息'. ELSE. WRITE: '找到了匹配的消息，日志编号是 ', lv_lognumber. ENDIF.
在这个例子中，如果找到了匹配的消息，lv_lognumber 将会被赋予相应的日志编号。如果没有找到匹配的消息，lv_lognumber 将会保持初始值。
BAL_GLB_SEARCH_MSG 是一个非常有用的 Function Module，它可以帮助你在系统中查找特定的消息。但是，你需要注意的是，查找的范围可能会受到你的系统设置的限制。例如，如果你的系统设置为只保留一定时间内的日志，那么你可能无法找到更早期的消息。
