SAP BM_STRUCTURE_READ_N_LEVELS Function Module for Read a structure, specifying the hierarchy levels to be read
BM_STRUCTURE_READ_N_LEVELS is a standard bm structure read n levels SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Read a structure, specifying the hierarchy levels to be read processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.
See here to view full function module documentation and code listing for bm structure read n levels FM, simply by entering the name BM_STRUCTURE_READ_N_LEVELS into the relevant SAP transaction such as SE37 or SE38.
Function Group: SF05
Program Name: SAPLSF05
Main Program: SAPLSF05
Appliation area: S
Release date: N/A
Mode(Normal, Remote etc): Remote-Enabled
Update:

Function BM_STRUCTURE_READ_N_LEVELS pattern details
In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.CALL FUNCTION 'BM_STRUCTURE_READ_N_LEVELS'"Read a structure, specifying the hierarchy levels to be read.
EXPORTING
STRUCTURE_ID = "
* FILTER_ID = ' ' "
TOP_NODE = "
TOP_LEVEL = "
READ_ALL_LEVELS = "
READ_N_LEVELS = "
* DISPLAY_MODE = 'D' "
* IGNORE_SFW_SWITCHES = ' ' "
IMPORTING
MESSAGE = "
TABLES
STRUCTURE_TABLE = "
* LIST_OF_TOP_NODES = "
IMPORTING Parameters details for BM_STRUCTURE_READ_N_LEVELS
STRUCTURE_ID -
Data type: HIER_IFACE-TREE_IDOptional: No
Call by Reference: No ( called with pass by value option)
FILTER_ID -
Data type: HIER_IFACE-TREE_IDDefault: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)
TOP_NODE -
Data type: HIER_IFACEOptional: No
Call by Reference: No ( called with pass by value option)
TOP_LEVEL -
Data type: SNODETEXT-TLEVELOptional: No
Call by Reference: No ( called with pass by value option)
READ_ALL_LEVELS -
Data type: HIER_TYPES-CHAR1Optional: No
Call by Reference: No ( called with pass by value option)
READ_N_LEVELS -
Data type: HIER_TYPES-NUMC2Optional: No
Call by Reference: No ( called with pass by value option)
DISPLAY_MODE -
Data type: HIER_TYPES-CHAR1Default: 'D'
Optional: Yes
Call by Reference: No ( called with pass by value option)
IGNORE_SFW_SWITCHES -
Data type: CHAR1Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)
EXPORTING Parameters details for BM_STRUCTURE_READ_N_LEVELS
MESSAGE -
Data type: HIER_MESSOptional: No
Call by Reference: No ( called with pass by value option)
TABLES Parameters details for BM_STRUCTURE_READ_N_LEVELS
STRUCTURE_TABLE -
Data type: HIER_IFACEOptional: No
Call by Reference: No ( called with pass by value option)
LIST_OF_TOP_NODES -
Data type: HIER_IFACEOptional: Yes
Call by Reference: No ( called with pass by value option)
Copy and paste ABAP code example for BM_STRUCTURE_READ_N_LEVELS Function Module
The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.| DATA: | ||||
| lv_message | TYPE HIER_MESS, " | |||
| lv_structure_id | TYPE HIER_IFACE-TREE_ID, " | |||
| lt_structure_table | TYPE STANDARD TABLE OF HIER_IFACE, " | |||
| lv_filter_id | TYPE HIER_IFACE-TREE_ID, " SPACE | |||
| lt_list_of_top_nodes | TYPE STANDARD TABLE OF HIER_IFACE, " | |||
| lv_top_node | TYPE HIER_IFACE, " | |||
| lv_top_level | TYPE SNODETEXT-TLEVEL, " | |||
| lv_read_all_levels | TYPE HIER_TYPES-CHAR1, " | |||
| lv_read_n_levels | TYPE HIER_TYPES-NUMC2, " | |||
| lv_display_mode | TYPE HIER_TYPES-CHAR1, " 'D' | |||
| lv_ignore_sfw_switches | TYPE CHAR1. " SPACE |
|   CALL FUNCTION 'BM_STRUCTURE_READ_N_LEVELS' "Read a structure, specifying the hierarchy levels to be read |
| EXPORTING | ||
| STRUCTURE_ID | = lv_structure_id | |
| FILTER_ID | = lv_filter_id | |
| TOP_NODE | = lv_top_node | |
| TOP_LEVEL | = lv_top_level | |
| READ_ALL_LEVELS | = lv_read_all_levels | |
| READ_N_LEVELS | = lv_read_n_levels | |
| DISPLAY_MODE | = lv_display_mode | |
| IGNORE_SFW_SWITCHES | = lv_ignore_sfw_switches | |
| IMPORTING | ||
| MESSAGE | = lv_message | |
| TABLES | ||
| STRUCTURE_TABLE | = lt_structure_table | |
| LIST_OF_TOP_NODES | = lt_list_of_top_nodes | |
| . " BM_STRUCTURE_READ_N_LEVELS | ||
ABAP code using 7.40 inline data declarations to call FM BM_STRUCTURE_READ_N_LEVELS
The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.| "SELECT single TREE_ID FROM HIER_IFACE INTO @DATA(ld_structure_id). | ||||
| "SELECT single TREE_ID FROM HIER_IFACE INTO @DATA(ld_filter_id). | ||||
| DATA(ld_filter_id) | = ' '. | |||
| "SELECT single TLEVEL FROM SNODETEXT INTO @DATA(ld_top_level). | ||||
| "SELECT single CHAR1 FROM HIER_TYPES INTO @DATA(ld_read_all_levels). | ||||
| "SELECT single NUMC2 FROM HIER_TYPES INTO @DATA(ld_read_n_levels). | ||||
| "SELECT single CHAR1 FROM HIER_TYPES INTO @DATA(ld_display_mode). | ||||
| DATA(ld_display_mode) | = 'D'. | |||
| DATA(ld_ignore_sfw_switches) | = ' '. | |||
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