Creating function modules with step by step

Hi,
plz provide me the material for creating function modules with step by step.

Hi Nagaraju,
Step 1.
GO to transaction SE80.In the drop box list select function group enter your Z Function group name.Press enter it will ask for creating the function group.Create your function group.
OR
In SE37 transaction,in the menu bar Goto - > Function Group - > Create Group.Your Function Group will be created.
Step 2.
Go to transaction SE37.Enter your Z Function module name,your recently created function group name and the description.Press Enter.Now your FM is created.
Step 3.
Enter Export,Import parameters.In the source code tab write the code what you want to write.If any exception write in the exception tab.
Method 2)
First u have to create Function Group.
1.se37->Goto->Function Group--->Create.
2.Create FM.
3.maintain import /export parameters and tables , exceptions.
4.based on the ur requirement u have to bulid ur logic in Source Code by using there Import parameters and u can pass the results by using Export or table.
5.u can raise error by using exception.
Reward if useful.
Thanks
Aneesh.

Similar Messages

How to create Function Module with TABLE parameter (for internal table)

Hi Guys,
I am trying to create a function module by using TABLE parameter. I have to pass an internal table to this function module for processing.
But it saying : TABLES parameters are obsolete!
And I am not going further.
Please suggest any work arround.
Thanks

Hi,
create a table type in SE11..
Then use that in your function module importing/exporting/changing parameter for passing internal tables..
Thanks,
Naren

How to create function module step by step

hi experts,
i am new to ABAP.
can anybody tell me the step by step process on how to create a function module for adding two numbers without using editor screen.
ex: 2+3=5.

Hi,
You can only create function modules and function groups using the Function Builder in the ABAP Workbench. For further information, refer to Creating New Function Modules. This section uses an example to illustrate how a function module is created from the point of view of ABAP programming.
Function Groups and Function Modules:
Firstly, we create a new function group DEMO_SPFLI to hold the function module. Then, we can create the new function module.
Parameter Interface:
You can specify the types of interface parameters in function modules in the
same way as the parameter interfaces of subroutines. Since function
modules can be used anywhere in the system, their interfaces can only contain
references to data types that are declared systemwide. These are the elementary
ABAP data types, the systemwide generic types, such as ANY TABLE, and types
defined in the ABAP Dictionary. You cannot use LIKE to refer to data types
declared in the main program.
Exceptions:
Our function module needs an exception that it can trigger if there are no entries
in table SPFLI that meet the selection criterion. The exception NOT_FOUND
serves this function.
Source Code:
Having defined the parameter interface and exceptions, we can now write the
source code of our function module. To do this, choose Source code in the
Function Builder. This opens the ABAP Editor for the include program
L<fgrp>U<xx> (see Function Groups). This is the include that will
hold the program code for the function module;
Data in Function Modules
You can use the TYPES and DATA statements to create local data types and
objects. The interface parameters also behave like local data objects. In
addition, you can access all of the global data of the main program. This data is
defined in the include program L<fgrp>TOP. To open this include, choose Goto
Global data. The global data behaves like the instance attributes of a class.
The first time you call a function module in a particular function group, the data is
loaded into memory. It can then be accessed and changed by all of the function
modules in the group. The system retains the values until the next time a function
module is called.
Calling Subroutines
You use subroutines for local modularization. Function modules can
also use this technique. The function module that they call are defined in the
corresponding main program.
If you only want to call a subroutine from a single function module, it is best to
define them in the same include program as the function module itself, directly
after the ENDFUNCTION statement. These subroutines can be called from all
function modules in the function group, but for clarity, they should only be called
from the function module that precedes them.
If you want to define a subroutine that will be called from several different function
modules, you can define a special include program for it with the name
L<fgrp>F<xx>.
Raising Exceptions
There are two ABAP statements for raising exceptions. They can only be used in
function modules:
RAISE <except>.
and
MESSAGE..... RAISING <except>.
The effect of these statements depends on whether the calling program handles
the exception or not. If the name <except> of the exception or OTHERS occurs
in the EXCEPTIONS addition of the CALL FUNCTION statement, the exception is
handled by the calling program.
If the calling program does not handle the exception
The RAISE statement terminates the program and switches to debugging mode.
The MESSAGE ..... RAISING statement display the specified message. How the
processing continues depends on the message type.
If the calling program handles the exception, both statements return control to the
program. No values are transferred. The MESSAGE ..... RAISING statement
does not display a message. Instead, it fills the system fields SY-MSGID, SYMSGTY,
SY-MSGNO, and SY-MSGV1 to SY-MSGV4.
Source Code of READ_SPFLI_INTO_TABLE
The entire source code of READ_SPFLI_INTO_TABLE looks like this:
FUNCTION READ_SPFLI_INTO_TABLE.
""Local interface:
*" IMPORTING
*" VALUE(ID) LIKE SPFLI-CARRID DEFAULT 'LH '
*" EXPORTING
*" VALUE(ITAB) TYPE SPFLI_TAB
*" EXCEPTIONS
*" NOT_FOUND
SELECT * FROM SPFLI INTO TABLE ITAB WHERE CARRID = ID.
IF SY-SUBRC NE 0.
MESSAGE E007(AT) RAISING NOT_FOUND.
ENDIF.
ENDFUNCTION.
The function module reads all of the data from the database table SPFLI where
the key field CARRID is equal to the import parameter ID and places the entries
that it finds into the internal table SPFLI_TAB. If it cannot find any entries, the
exception NOT_FOUND is triggered using MESSAGE...RAISING. Otherwise, the
table is passed to the caller as an exporting parameter.
Regards,
Chandru

How to create a custom function module with the records in SAP R/3?

Hi All,
How to create a custom function module with the records in SAP R/3? Using RFC Adapter I have to fetch the custom function module records.
Regards
Sara

Hi
goto se37...here u need to create a function group... then u need to create a function module. inside assign import/export parameters. assign tables/exceptions. activate the same. now write ur code within the function module
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db98fc35c111d1829f0000e829fbfe/content.htm
Look at the below SAP HELP links, These links will show you the way to create a Function Module
http://help.sap.com/saphelp_nw04/helpdata/en/26/64f623fa8911d386e70000e82011b8/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db98fc35c111d1829f0000e829fbfe/content.htm

Syntax Error with Table Parameter (type: ANY) when Creating Function Module

Hello experts,
I want to create a function module with a table parameter and table type is ANY. But when I check (Ctrl+F7) this function module, syntax error occurs - "In this statement, the internal table "MSG_TABLE_ITEM" must have the type "STANDARD TABLE"."
Could anyone tell me what the wrong is? And how can I fix it?
Thanks,
Shelwin

Hi,
For table parameters, you can only pass
MSG_TABLE_ITM TYPE STANDARD TABLE
or
MSG_TABLE_ITM ( don't fill other columns TYPING ASSOCIATED TYPE ).
For reference check FM 'GUI_UPLOAD' - Table parameters
Regards,
DPM

Help me in Creating Function Module

Hi All,
I am new to SAP, please help me doing the following task given to me.
Given EE group and EE subgroup, how to write a custom function module that displays all the employees in it?
The output should be displayed in 2 tables where first table has the infotypes 0001 and 0002 and second table has infotype 0006.
Thank you

HI.
Function Modules;
Check this matter.
Function Modules are Global ABAP programs created by SAP for reusable purpose.they have IMPORT,EXPORT and TABLE parameters, and EXCEPTIONS to through when error occurs.
You can create them from TCode SE37.
Go through the following doc:
Function modules are cross-program, reusable procedures that are organized into function groups, and whose functions are implemented between the statements FUNCTION and ENDFUNCTION. Function modules and their interfaces are created in the Function Builder.
Function Module Interfaces
The parameter interface of a function module is defined in the Function Builder. It includes the definition of interface parameters and the specification of exceptions that can be triggered by a function module. The Function Builder automatically generates comment lines below the FUNCTION statement in the source code of the function module, which represent the interface of the function module with the following syntax:
Syntax
... IMPORTING parameters
EXPORTING parameters
CHANGING parameters
TABLES table_parameters
{RAISING
The syntax and semantics of IMPORTING, EXPORTING, CHANGING, RAISING, and EXCEPTIONS mainly correspond to the definition of method interfaces with CLASS-METHODS. The additional option of defining table parameters using TABLES is obsolete.
Interface parameters
The interface parameters are defined on the relevant tab pages in the Function Builder.
IMPORTING parameters are input parameters. When the function module is called, a suitable actual parameter must be specified for every non-optional input parameter. The content of the actual parameter is passed to the input parameter when the call is made. The content of an input parameter for which 'pass by reference' is defined cannot be changed in the function module.
EXPORTING parameters are output parameters. When the function module is called, a suitable actual parameter can be specified for every output parameter. The content of an output parameter that is defined for 'pass by value' is transferred to the actual parameter if the function module is completed without errors. An output parameter that is defined for pass by reference is not initialized when the function module is called.
CHANGING parameters are input and output parameters. When the function module is called, a suitable actual parameter must be specified for every non-optional input or output parameter. When the function module is called, the content of the actual parameter is passed to the input/output parameter, and when the function module is completed, the content of the input/output parameter is passed to the actual parameter.
TABLES parameters are table parameters. Table parameters are obsolete CHANGING parameters that are typed as standard tables with a header line. If an internal table without a header line or a table body is passed as an actual parameter to a formal parameter of this type, an empty local header line is generated in the function module. If an internal table with a header line is used as an actual parameter, both the table body and the header line are passed to the function module. Pass by value is not possible in formal parameters defined using TABLES. Formal parameters defined with TABLES can be replaced by formal parameters defined with CHANGING. A local work area can be created for the internal table in the function module by using the addition LIKE LINE OF itab of the DATA statement.
Exceptions
The exception of a function module are defined on the Exceptions tab page in the Function Builder. Here you can select exception classes to define whether class-based exceptions are declared or non-class-based exception are defined. Class-based exceptions are represented in the above syntax by RAISING, and non-class-based exceptions are represented by EXCEPTIONS.
The addition RAISING is used to declare class-based exceptions that can be propagated from the function module to the caller. Exceptions in the categories CX_STATIC_CHECK and CX_DYNAMIC_CHECK must be explicitly declared, otherwise a propagation can lead to an interface violation. A violation of the interface leads to the treatable exception CX_SY_NO_HANDLER. Exceptions of the category CX_NO_CHECK are implicitly always declared. The declaration of exceptions of the category CX_STATIC_CHECK is statically checked in the syntax check. For exceptions of the category CX_DYNAMIC_CHECK, the check is not performed until runtime. In a function module in which class-based exceptions are declared with the RAISING addition, the statement CATCH SYSTEM-EXCEPTIONS cannot be used. Instead, the relevant treatable exceptions should be handled in a TRY control structure.
The addition EXCEPTIONS is used to define a list of non-class-based exceptions that can be triggered in the function module using the statements RAISE or MESSAGE RAISING. Exceptions defined in this way - as with formal parameters - are bound to the function module and cannot be propagated. If an exception of this type is triggered in a function module, and no return value has been assigned to it with the homonymous addition EXCEPTIONS of the CALL FUNCTION statement when the call was made, this leads to a runtime error.
Note
For new developments after release 6.10, SAP recommends that you work with class-based exceptions that are independent of the function module.
Plz follow these steps:::
for creating the function modile initiallly we need to create the function group in se37 tcode.
1.later create the function module:
2. let us take some example
in import -
> im_kunnr type kunnr.
3. export:::
Ex_kna1 Type kna1.
4. Source code: tab
if not Im_kunnr is initial.
select single * into ex_kna1
from kna1
where kunnr eq im_kunnr.
5.save
6. goto se80 and activate all the function module as a set.
now u can use it in se38 z programs.
hope u understood the logic to use try this..
To be reward all helpfull naswers.
Jay

Creating Function Module in Generic Extractor?

Hello All
DO anyone has steps how to create a Functional Module in Generic Extraction?
Pl let me know
Many Thanks
balaji

hi Balaji,
first create your function module (se37),
sample code see function module
RSAX_BIW_GET_DATA_SIMPLE.
then follow steps in create generic datasource
http://help.sap.com/saphelp_nw04/helpdata/en/3f/548c9ec754ee4d90188a4f108e0121/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/86/1c8c3e94243446e10000000a114084/frameset.htm
hope this helps.

Creating function modules

Hi Friends,
Is it true to say that creating function modules in BPS is easier than the normal way of creating it in BW / R3 where you have to link it to the function group and all the usual steps?
Hope you can clarify. Thanks.
Michael

Hi Michael,
pressing F1 when you define an EXIT Funtion on the field "Function Module" BPS will show you a Performance Assistant window that explains the guide line to define Importing and Exporting parameters to be defined in you FM. You will see that these are different from the ones requested when implementing a BPS Variable replaced by Used Exit.
Hope it helps
GFV

Doubt in export, import and table para when creating Function Module

Dear fellow ABAPers,
I have a doubt in defining export, import and table parameter while creating a function module.
I am calling a function module inside a user exit. Now in the user exit the SAP fills an internal table called i_lfa1 with all the data user has eneterd.
Now I want to pass this whole internal table to function module and the perform some checks on the values of internal table.
After that function module fills an error structure with values depending on some check.
1)
How do I pass this internal table to function module ?
When I am creating function module in se37 where do I define this iternal table type ? Is it in Import or Table parameter during function module creation?
2)
Where do I define error structure type (which is returned by function module to main program)? Is it in Export or table parameter during function module creation?
Please clear my doubt..
Relevant points will be awarded.
Regards,
Tushar.

Hi Tushar,
1. How do I pass this internal table to function module ?
   I assume u are creating your own Y/Z FM.
   Pass it thru TABLES parameter.
2. When I am creating function module in se37 where do I define this iternal table type
   Define this in TABLES interface.
   What Type ?
   THE SAME TYPE WHICH HAS BEEN DEFINED
    WHILE PASSING IN THE USER-EXIT FUNCTION MODULE.
   IF U SEE THE FM OF THE USER-EXIT,
   U WILL COME TO KNOW.
3.
Where do I define error structure type (which is returned by function module to main program)? Is it in Export or table parameter during function module creation?
Define it in TABLES interace. (not in export, import)
(Since what u are going to return is an internal table)
U can take for eg. BDCMSGCOLL.
OR u can create your own Y/Z structure
for the same purpose.
(or u can use the structure type T100)
I hope it helps.
Regards,
Amit M.

RFC Function module-With Only Request message

Hi
i need a RFC with only Request message and Response message is not required.
please help me, how to create a RFC function module with out Response message, and it should contain only Request message.
i have created RFC in this way:
RFC doesn't contain neither import nor export parameters. and i have defined one table in TABLE tab which refers to a ztable created already.
when i imported RFC into XI i came to know that RFC has both Request and Response messages, but i don't need Response message.
Thanks in advance..help would be appreciated
Regards,
Rajesh

Thankx Michal,
I have written ZRFC this way:
insert ZMM_AUTO_GR from INPUT_TABLE .
if sy-subrc = 0.
commit work.
else.
rollback work.
im not using neither import nor export parameters..but using only tables parameters. but when imported in XI im getting same table structure in both request an response.
please suggest what changes required in above code to invoke my ZRFC in async way.
you will not get any response in XI- what chages required in my code to dnt get .reponse in XI.
appreciate your help.
Regards,
Rajesh.

How to create function module in abap for VirtualProvider in bi

how to create function module in abap for VirtualProvider in bi ???????????????
can any one help me with simple example ?????????????????
Moderator message : Duplicate post locked. Read forum rules before posting.
Edited by: Vinod Kumar on Jun 15, 2011 4:40 PM

Hi ,
Thanks for replies about my question??.
If i am using the exit in my char relation ship how can i debugg that exit???
if i am using BPS0 how to do it???If i am using BPS_WB how to do it??
Case1.Variable (type Exit) I known how to do debugg this one in BPS0 but i'm not sure in BPS_WB??
Case2:Char Relation Ship(Type Exit) how to do in BPS0 and BPS_WB??.
Thanks.

How to assign function module with process code in IDOC ?

how to assign function module with process code in IDOC ? and what code i have to write in that function module for custom IDOC ?
helpful answer will be rewarded?

Hi,
First goto transaction we42 -->editing mode --> new entries -->give name of your process code and description --> processing with alv service and function module -->then press enter -->after that enter the name of the function module you want to associate from the drop down and save it.
Thats the way to assign function module with process code.
In that process code we will have the Function modules and Bapi's which will take the data which we are sending through IDOC and then process it.
for example: i am triggering the IDOC for every purchase order created then this process code in the receiver system will take the data which i have enetered in the sender system to create the purchase order and process it and creates the same purchase order in the receiver's system.
Reward if helpful.
with regards,
Syed

Generic Extractor using Function module with Complex Interface

Hi,
Has anyone created Generic extractor using Function module with Complex Interface?
What is the difference between Complex and Simple interface in Function module?
Pls explain.
Thanks,
Gopal

Hi,
Go through this link.....
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/d3219af2-0c01-0010-71ac-dbb4356cf4bf
GTR

Create Function module on d fly

Hi,
is there any possibility to create a Function module on the fly? if so pls let me know about the APIs.
Best regards, Girish

Hi
Yes, sometime you have to create our own custom Fun modules
see the doc it is useful to create the fun modules
Function Modules;
Check this matter.
Function Modules are Global ABAP programs created by SAP for reusable purpose.they have IMPORT,EXPORT and TABLE parameters, and EXCEPTIONS to through when error occurs.
You can create them from TCode SE37.
Go through the following doc:
Function modules are cross-program, reusable procedures that are organized into function groups, and whose functions are implemented between the statements FUNCTION and ENDFUNCTION. Function modules and their interfaces are created in the Function Builder.
Function Module Interfaces
The parameter interface of a function module is defined in the Function Builder. It includes the definition of interface parameters and the specification of exceptions that can be triggered by a function module. The Function Builder automatically generates comment lines below the FUNCTION statement in the source code of the function module, which represent the interface of the function module with the following syntax:
Syntax
... [IMPORTING parameters]
[EXPORTING parameters]
[CHANGING parameters]
[TABLES table_parameters]
[{RAISING|EXCEPTIONS} exc1 exc2 ...]
The syntax and semantics of IMPORTING, EXPORTING, CHANGING, RAISING, and EXCEPTIONS mainly correspond to the definition of method interfaces with [CLASS-]METHODS. The additional option of defining table parameters using TABLES is obsolete.
Interface parameters
The interface parameters are defined on the relevant tab pages in the Function Builder.
IMPORTING parameters are input parameters. When the function module is called, a suitable actual parameter must be specified for every non-optional input parameter. The content of the actual parameter is passed to the input parameter when the call is made. The content of an input parameter for which 'pass by reference' is defined cannot be changed in the function module.
EXPORTING parameters are output parameters. When the function module is called, a suitable actual parameter can be specified for every output parameter. The content of an output parameter that is defined for 'pass by value' is transferred to the actual parameter if the function module is completed without errors. An output parameter that is defined for pass by reference is not initialized when the function module is called.
CHANGING parameters are input and output parameters. When the function module is called, a suitable actual parameter must be specified for every non-optional input or output parameter. When the function module is called, the content of the actual parameter is passed to the input/output parameter, and when the function module is completed, the content of the input/output parameter is passed to the actual parameter.
TABLES parameters are table parameters. Table parameters are obsolete CHANGING parameters that are typed as standard tables with a header line. If an internal table without a header line or a table body is passed as an actual parameter to a formal parameter of this type, an empty local header line is generated in the function module. If an internal table with a header line is used as an actual parameter, both the table body and the header line are passed to the function module. Pass by value is not possible in formal parameters defined using TABLES. Formal parameters defined with TABLES can be replaced by formal parameters defined with CHANGING. A local work area can be created for the internal table in the function module by using the addition LIKE LINE OF itab of the DATA statement.
Exceptions
The exception of a function module are defined on the Exceptions tab page in the Function Builder. Here you can select exception classes to define whether class-based exceptions are declared or non-class-based exception are defined. Class-based exceptions are represented in the above syntax by RAISING, and non-class-based exceptions are represented by EXCEPTIONS.
The addition RAISING is used to declare class-based exceptions that can be propagated from the function module to the caller. Exceptions in the categories CX_STATIC_CHECK and CX_DYNAMIC_CHECK must be explicitly declared, otherwise a propagation can lead to an interface violation. A violation of the interface leads to the treatable exception CX_SY_NO_HANDLER. Exceptions of the category CX_NO_CHECK are implicitly always declared. The declaration of exceptions of the category CX_STATIC_CHECK is statically checked in the syntax check. For exceptions of the category CX_DYNAMIC_CHECK, the check is not performed until runtime. In a function module in which class-based exceptions are declared with the RAISING addition, the statement CATCH SYSTEM-EXCEPTIONS cannot be used. Instead, the relevant treatable exceptions should be handled in a TRY control structure.
The addition EXCEPTIONS is used to define a list of non-class-based exceptions that can be triggered in the function module using the statements RAISE or MESSAGE RAISING. Exceptions defined in this way - as with formal parameters - are bound to the function module and cannot be propagated. If an exception of this type is triggered in a function module, and no return value has been assigned to it with the homonymous addition EXCEPTIONS of the CALL FUNCTION statement when the call was made, this leads to a runtime error.
Note
For new developments after release 6.10, SAP recommends that you work with class-based exceptions that are independent of the function module.
RFC is a technology which is used to access a functions (Modules) from
the remote systems.
If a function module is set as remote enabled which can be access from
the remote system via RFC.Eg: U can access the Remote enabled function modules in ur VB,Webdynpro,Java,Visual composer program.
A function module can be set as remote enabled by SE37->Go to ur FM->click the option Button "remote enabled".
But Normal function modules can not accessd from the remote system.
Good Example for RFC enabled function module is : BAPI(Business Application Programming Interface)
Note: All BAPIs are Remote enabled but not all remote enabled function modules are BAPI.
CALLING A FUNCTION MODULE:
1)In U ABAP Editor --> Click "Patter" ---> Selection Option Button "Call Function"
--> Write the Corresponding FM name --> Hit Enter
2)The appropriate import ,export Parameters will be displayed in ur editor
3)Pass the Values Here.
Also check these links.
http://www.geocities.com/victorav15/sapr3/abapfun.html
Check this link:
http://help.sap.com/saphelp_erp2004/helpdata/en/9f/db988735c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/ef/d94b78ebf811d295b100a0c94260a5/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/41341147041806e10000000a1553f6/frameset.htm
Check this link:
http://help.sap.com/saphelp_erp2004/helpdata/en/9f/db988735c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/ef/d94b78ebf811d295b100a0c94260a5/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/41341147041806e10000000a1553f6/frameset.htm
See the following links:
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/26/64f623fa8911d386e70000e82011b8/content.htm
<b>Reward points for useful Answers</b>
Regards
Anji

How to check for a function module with its description and functionality

Hi all,
How to check for a function module,with its description and its functionality,in detail how can I know the purpose of a particular function module,how to search for a function module which suits my requirement .

Hi,
You can search a FM of your requirement by putting in the Key words and searching for a FM. Like * KEYWORD * and then pressing F4.
Say for example you need to search something regarding converstion.
Search for * CONVERT * and press F4.
If there is something specfic like converting date to something you can give
DATE * CONVERT *
OR
CONVERT * DATE * and press F4.
Once you narrow down your search you will have a Function module documentation inside the Function module. Please note that all the FMs willl not have documentation.
Regards,
Pramod

Creating function modules with step by step

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