What are functional modules? why we use them?

HI all,
Please explain what are the functional modules? why we use them? I am talking in reference to SAP HR.
Thanks,
Rashmi

Hi SAP Gurus,
as now i got some idea that SAP has provided lot of funtional modules and also we can create our own function modules,
1, can any one tell with an example when and at what cases this funtional modules are made use of, and how will we come to know which funtional module has to be made use of and for which specific purposes.
2, do you mean to say SAP has provided many funtional modules but they are in Dormant stage untill activated or made use of.
3. Is developing funtional module mainly ABAPers work or could be done by Funtional person alltogether (in case of using the existing FMs
4, When and how this FMs work, what is the trigger point do we have to run this when required, if so how
5, what is the difference Between FMs and UserExits
Can anyone throw some light on this with an example,
Points for sure for Suitable answers
Thanks and Regards
Sathish
Edited by: sathish kumar on May 5, 2008 7:43 PM

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What are function modules used in alv,and its explanation

what are function modules used in alv,and its explanation

hi..
The important function modules are
Reuse_alv_fieldcatalog_merge
Reuse_alv_list_display
Reuse_alv_events_get
Reuse_alv_grid_display
Reuse_alv_commentary_write.
REUSE_ALV_FIELDCATALOG_MERGE
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 If the output data is from a single dictionary table and all the columns are selected, then we need not exclusively create the field catalog. Its enough to mention the table name as a parameter (I_structure_name) in the REUSE_ALV_LIST_DISPLAY. But in other cases we need to create it.
Note : Fieldcatalog can be filled manually also by filling up all the required details into the internal table
The important parameters are:
 1. Export:
 a. I_program_name : report id
 b. I_internal_tabname : the internal output table
 c. I_inclname : include or the report name where all
 the dynamic forms are handled.
 2. Changing
 ct_fieldcat : an internal table with the type
 SLIS_T_FIELDCAT_ALV which is declared in the
 type pool SLIS.
REUSE_ALV_LIST_DISPLAY
This is the function module which prints the data.
The important parameters are:
1. Export:
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 I_buffer_active :
 I_callback_pf_status_set : routine where a user can set
 his own pf status or change the
 functionality of the existing pf status.
 I_callback_user_command : routine where the function codes are
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 REUSE_ALV_FIELDCATALOG_MERGE
 It_events : internal table with a list of all possible events
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2. Export:
 I_list_type:
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 REUSE_ALV_HIERSEQ_LIST_DISPLAY
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 REUSE_ALV_BLOCK_LIST_HS_APPEND
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preview.
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REUSE_ALV_COMMENTARY_WRITE
This is used in the Top-of-page event to print the headings and other
comments for the list.
It_list_commentary : Internal table with the headings of the type
 slis_t_listheader.
 This internal table has three fields:
 Typ : H - header, S - selection, A - action
 Key : only when typ is S.
 Info : the text to be printed
plz reward pts if helpful.
regards
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Hi Firend,
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Which are function modules used to convert into XML format in SAP 4.6c Ver

which are function modules used to convert into XML format in SAP 4.6c Ver

Hi,
check this program , I think this will help you
TYPE-POOLS: ixml.
TYPES: BEGIN OF xml_line,
data(256) TYPE x,
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data : file_location type STRING.
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concatenate file_location file_name into file_create.
concatenate file_create '.XML' into file_create.
DATA: l_xml_table TYPE TABLE OF xml_line,
l_xml_size TYPE i,
l_rc TYPE i.
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append itab .
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EXPORTING
I_FIELD_SEPERATOR =
I_LINE_HEADER =
I_FILENAME =
I_APPL_KEEP = ' '
I_XML_DOC_NAME =
IMPORTING
PE_BIN_FILESIZE = l_xml_size
TABLES
i_tab_sap_data = itab
CHANGING
I_TAB_CONVERTED_DATA = l_xml_table
EXCEPTIONS
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OTHERS = 24
IF sy-subrc <> 0.
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WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD cl_gui_frontend_services=>gui_download
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EXCEPTIONS
OTHERS = 24.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
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write : 'INTERNAL TABLE DATA IS SUCCESSFULLY DOWNLOADED TO LOCATION', file_create .
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What are the important standard table use in FI/CO module?

What are the important standard table use in FI/CO module?
Moderator Message: Please avoid asking such queries.
Edited by: kishan P on Jan 24, 2012 12:37 PM

Hi Sanj,
Please go through the available information and then you can ask if there is any queries.
[Google|http://www.google.co.in/search?sourceid=chrome&ie=UTF-8&q=importanttablesinficoin+sap]
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Hello All,
There are a lot of sub-folders in the http://CentralSiteSCCM/ReportServer. They are like:
<dir> Config_Mgr_CEN
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Hi Mike,
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http://social.technet.microsoft.com/Forums/en-US/configmanagergeneral/thread/dc9aa3b4-cea9-4a07-87ca-2795a2dbc04e
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Hi All,
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What are the transaction codes we use for LSMW in MM, SD, PP & FI/CO generally?
Help will be surely rewarded.
Thanks and Regards,
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> What are the transaction codes we use for LSMW in MM, SD, PP & FI/CO generally?
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Hi Gang,
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What are functional modules? why we use them?

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