How to extend an outbound i doc

How to Extend an Outbound IDoc
Applies to:
Developing and configuring SAP Intermediate Documents (IDocs) for data transfer.
Related till version ECC 6.0.
For more information, visit the Idoc homepage and the ABAP homepage.
Summary
This document provides details on why we need an extended Idoc and how to create it. We will also see a
step by step procedure of creating an extended Idoc. The Steps involve creating a segment of required
structure, Extend basic Idoc and assign new segment to extended Idoc. Also involves Maintaining message
type, partner profile and implementing the User exit. Further the Idoc is transferred to the destination. A
whole overview of Extended Outbound Idoc can be learned with this article. Though some related
information already available in SCN, to make it more comprehensive, I plan to explain it using screen shots
along with a real world example making it easier.
Author: Lakshmi Narayana Neeli
Company: Intelligroup Asia Pvt Limited.
Created on: 14 Aug 2009
Author Bio
Lakshmi Narayana Neeli works with Intelligroup Asia Pvt Limited since 2008. He has good knowledge in SAP
ABAP and CRM.
SAP COMMUNITY NETWORK SDN - sdn.sap.com | BPX - bpx.sap.com | BOC - boc.sap.com
© 2009 SAP AG 1

Table of Contents
Introduction .........................................................................................................................................................3
Why We Need an Extended Idoc?..................................................................................................................3
Business Scenario – Invoice...............................................................................................................................4
Basic Steps in Invoice Extension Outbound Idoc ...........................................................................................4
WE31- Create Segment Type......................................................................................................................................4
Create IDOC Type ..........................................................................................................................................9
Create Logical Message Type ......................................................................................................................15
Create Output Types and Assignment to IDOC Type...................................................................................16
Creating Partner Profile.................................................................................................................................17
Finding and Updating Customer Exit Using SMOD......................................................................................21
Outbound Process Code...............................................................................................................................25
Create a Transaction and Send IDoc............................................................................................................31
Monitoring IDoc.............................................................................................................................................34
Related Content................................................................................................................................................36
Disclaimer and Liability Notice..........................................................................................................................37
© 2009 SAP AG 2

Introduction
SAP’s presence in the IT world is propelled by its unique integration of all its sub systems to a central
system. More than a linking together of applications, implementing SAP redirects the flow of information
through a company and its partners to enhances the potential of its business functions. This flow of
information is enabled by a core element - Intermediate Document, or IDoc. Technically, the IDoc is an
example of Electronic Data Interchange (EDI).The IDoc concept borrows the best features of EDI and
combines them with the best features of conventional transaction file formats. SAP R/3 systems send out
data through Idoc (Intermediate Document), which in internally has segments and fields containing the data.
Why We Need an Extended Idoc?
SAP send out data through Idoc with many predefined segments, Message types and fields. But sometimes,
these fields are not sufficient for a specific end-to-end business scenario as far as data transfer is concerned.
So in such scenario, we can add new segments with completely new structure to the standard Idoc as an
extension called as extended Idoc. Here we create a new structure and insert it into existing Idoc structure
creating a whole new Idoc satisfying the requirement. Following blog gives out step-by-step approach for
creation of the same.
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Business Scenario – Invoice
For instance let us take a scenario in billing, where we already have a predefined Idoc type ‘INVOIC02’. But
the requirement is to transfer additional structure containing VBRK-KTGRD (Account assignment group for
this customer) and VBRK-MANSP (Dunning block).
To get the requirement fulfilled we wish to create a segment structure add segment with two additional fields
as an extension to the existing Idoc Type ‘INVOIC02’. The basic steps are explained here and going further a
more detailed step by step illustration is done.
Basic Steps in Invoice Extension Outbound Idoc
• Create a segment with two VBRK-KTGRD (Account assignment group for this customer) and
VBRK-MANSP (Dunning block)
• Extend basic Idoc with new segment
• Assign Extended Idoc to message type
• Maintain partner profile i.e., Update Extended Idoc in partner profile
• Find relevant user exit
• Implement User exit
• Update values into this your segment of extended Idoc
• Trigger output from VF02 with medium 6
• Check your Idoc in WE02
Now we will see a step by step creation of the extended Idoc.
Create a Segment WE31
To create a segment with two VBRK-KTGRD (Account assignment group for this customer) and VBRK-
MANSP (Dunning block)
WE31- Create Segment Type
In this transaction we create a segment type. This segment type has two fields KTGRD and MANSP as
specified from VBRK table. This segment will be used in extended Idoc as follows. In transaction WE31 we
get the following screen.
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Create a segment “ZTRGEDC” as shown.
Give name ZTRGEDC and
click create
Click on save which bring a
popup as shown
Give the fields
as shown.
.
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Click here
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Segment is saved and assigned request number
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So segment is created and set to release. After you release the system automatically updates the version
release (Here it is 700 in above diagram). Only one unique version segment is released per version i.e. here
ZTRGEDC with release 700 exists once only and no changes are allowed until it is in released status (the
Tick mark in Released tab).
So in order to make changes unrelease the segment and make changes and once again “set release” it. So
now ZTRGEDC segment is created and set to release. Now we need to create the IDOC type.
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Create IDOC Type
Go to WE30 to Create IDOC Type screen is as shown
Create an Idoc by
clicking on create
Select the basic
IDOC type here
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Since we are creating the existing Idoc, we assign invoice02 here.
Select this after pressing F4

We get the following screen showing the set of segments. Since the extensions VBRK-KTGRD and VBRK-
MANSP belong to “HEADER” tab in transaction VF02 the extension is done for the relevant segment type
E1EDK01 related to “Header General Data”. We extend it as shown.
Extensions VBRK-KTGRD and VBRK-MANSP
belong to “HEADER” tab, so we selected it
Click here then create
Click on Create
Click Create
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We get a popup to maintain attributes as shown
Select this
This flag suggests whether this
segment is mandatory in sequence
Hierarchy level is maintained one
more than parent else as 0
Minimum and Maximum numbers
define the minimum and Maximum
number of segments in sequence
Give attributes as shown and click here
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The attributes include whether it is a mandatory Segments. The Maximum and minimum numbers specify the
no of times the segment can be repeated in sequence. The Hierarchy level suggests the parent relation
ships. For a segment which do not have a parent segment either have hierarchy level 1 (if they cannot be
repeated) or hierarchy level 2 (if they can be repeated). Segments which have a parent segment have a
hierarchy level which is one higher than that of their parent.
The extension is
created as shown
Save it.
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Press on “back” and Release the Idoc as shown.
Click here
Click here
Click here
So Idoc type is created and released.
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Create Logical Message Type
The message type determines the technical structure of the message. Message type determines data
contained and also determines process involved in flow of message across Distributed environment. The
Message Type controls Process Code, in turn drives Function Module to determine the content of the
message. It also controls IDocs processing (batch, immediately etc).
There exist standard message types predefined by SAP. Some of them are
CUSTOMER – DEBMAS
VENDOR – CREMAS
MATERIAL – MATMAS
SALES ORDER – ORDRSP
PURCHASE ORDER – ORDERS
INVOIC - INVOICE
We can also create the customized logical message type according to the requirements. Since we are using
the invoice here we can use the existing message type INVOIC.
In transaction WE81- Logical message type we can see for message type INVOIC
INVOIC is the standard message
type for the Billing document
Since we have a standard message type we did not create it else we can create using NEW ENTRIES tab.
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Create Output Types and Assignment to IDOC Type
Go to transaction WE82- Output types and Assignment to IDOC types. Check for the entry with
Message Type INVOIC
Basic type INVOIC02
Extension ZTRGIDOC
If it exists already we will use it else create it using new entries.
Click on new entries
Create a new entry as shown and save it
Saved successfully
So we created Output types and Assignment to IDOC type as an entry. This is used in the Idoc processing.
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Creating Partner Profile
Then go to WE20 to Creating partner profile, as it is an invoice, Select customer
We chose 1600 as an example, for general you can choose any customer
Select Customer
Add an outbound parameter
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In real time, we do not use test flag in message control to send an Idoc. We used this test flag enabled only
to show that we are creating the IDoc for ‘testing’ purpose on the outbound side.
The Message type, Partner Role, Receiver port, Basic and extended Idoc type with output mode “Transfer
Idoc immediately” is given as a partner profile as shown in above document.
Click on Message Control
Click on the message control to give the values of application, Message type and process code.
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Save it
Enter the values
These key fields application, Message type and process code assigned in the message control together
uniquely identify a message type which uniquely identifies an IDoc type.
The key fields application, Message type and process code are used as
Application: The Application specified in message control determines the output type and uniquely identifies
a message type which can be assigned uniquely to an IDoc type.
For Example: 'EA' is used for ‘Purchasing RFQ' in Materials Management (MM).
V3' is used for 'Billing' in Sales and Distribution (SD).
Message type: Message type along with the application uniquely identifies a message type which can be
assigned uniquely to an IDoc type.
For Example: 'LAVA' = 'Shipping notification' in dispatch (application 'V2').
Process code: The Process code is used by an IDoc Interface to determine the application selection
module which converts the SAP document into an IDoc.
For Example: ME10: Purchase order (MM)
Here the values are chosen depending on the description having billing or invoice.
The application is V3: Billing
The Message type MD00: MKS -Invoice O/P type
The process code SD09: INVOIC: Invoice
We get the function module embedded in the process code where the functionality is coded. This is a Top –
Down approach of finding the relevant function module to write User Exit. We can also find the process code
and relevant function module in the Bottom - Up approach.
The function module which is embedded in each process code follows a naming convention
“IDOC_<OUTPUT / INPUT >_NAME OF BASIC TYPE”. This helps in finding the process code and then the
other attributes. For our example here we do an outbound with basic Idoc INVOIC. So the function module
will be “IDOC_OUTPUT_INVOIC”.
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Search this in Function builder SE37 and find the relevant process code in transaction codes WE40
(inbound) or WE41 (outbound). Here we followed the top approach. Many times depending on the
description of the application, message type we find the relevant key fields and link them up.
But if we could not find the relevant function module then there is another method of finding it. The process is
explained below using the Transactions SMOD and CMOD. We can use this method as an alternative. We
choose among the Bottom - Up, Top – Down and SMOD depending on the scenario.
© 2009 SAP AG 20

Finding and Updating Customer Exit Using SMOD
The Enhancement for the transaction can also be found using the transaction SMOD. Here we need to give
the package to find the find the exact enhancement and the respective function module which serve our
purpose.
So go to SE37 to find the package of “IDOC_OUTPUT_INVOIC”.
After clicking on display. Go to the “Attributes” tab and look for the package name.
Here we get the Package as “VED”, Use this Package name in SMOD to find the respective function module.
The Package is VED
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Go to Transaction SMOD and give the value of Package we got (here “VED” ) in F4 help or utilities Find.
Give the Package VED
and press enter
We get the set of Exit names; Find the most suitable by the short text description. The description here
”User Exit for Idoc infotype” is more apt. So select the exit “LVEDF001” to get the list of function modules
From which we select the option which is more apt.
Select the exit which is
more relevant
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Click on components
This function module
is more relevant,
This is the function module where we are going to add the functional change.
Go to CMOD and give “BPID” standard enhancement or you can create a new project with ‘LVEDF001’
Standard Project
BPID is given
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Click here
Click here
The same enhancement we selected in SMOD
The Enhancement is having our component active.
The Component required
should be activated. Here it
is active.
You can Click here to directly go to the function “exit_saplvedf_002” or follow the path as shown below.
You need to add the changes required in this customer exit. The process is explained in detail below.
So the process using the Transactions SMOD and CMOD is explained above. Now we need to make the
changes in the code according to the requirement.
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Outbound Process Code
We found the relevant user exit using SMOD and SMOD as “exit_saplvedf_002”.
But in Top-Down or Bottom - Up we can find the relevant user exit do the following steps.
Go to transaction WE41 - Outbound process code. DOUBLE CLICK On SD09 as shown
Double click
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We can get into the function module to find the customer exit. So after getting into the function module how
you find the relevant customer exit is defined below. Double click on the function module to get to the next
screen.
Double click
You will find a customer function for control record “customer-function '001'” which is not useful for us. Find
the perform which normally come at the end of the Function module having a naming convention starting
with “Fill” or “Fuellen”. This is shown in the above screen shot.
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Double click
Double click
Since we are adding our segment to e1edk01 find the perform having this string. Here it is
perform fill_e1edk01. Double click on it.
Double click
At the end of it you will have perform with name “perform customer_function.” Double click it. You will get
the “customer-function '002'” which is the required customer function. Double click it.
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© 2009 SAP AG 28
We will get the required customer function “function exit_saplvedf_002” with an include “include
zxedfu02”. This will lead you to the customer exit where we write the required changes.
Double click
Double click
Double click
The User Exit

Please find the code below.
TYPES : begin of ty_vbrk,
ktgrd type ktgrd,
mansp type mansp,
end of ty_vbrk.
DATA : wa_edidd type edidd,
v_lines type i,
wa_e1edk01 type e1edk01,
Wa_ZTRGEDC type ZTRGEDC,
wa_vbrk type ty_vbrk.
READ TABLE INT_EDIDD INTO WA_EDIDD WITH KEY SEGNAM = 'ZTRGEDC'.
IF SY-SUBRC NE 0.
READ TABLE INT_EDIDD INTO WA_EDIDD WITH KEY SEGNAM = 'E1EDK01'.
IF SY-SUBRC = 0.
wa_e1edk01 = WA_EDIDD-SDATA.
SELECT SINGLE KTGRD MANSP FROM VBRK INTO WA_VBRK
WHERE VBELN = WA_E1EDK01-BELNR.
IF SY-SUBRC = 0.
Wa_ZTRGEDC-KTGRD = WA_VBRK-KTGRD.
Wa_ZTRGEDC-MANSP = WA_VBRK-MANSP.
INT_EDIDD-SEGNAM = 'ZTRGEDC'.
MOVE Wa_ZTRGEDC TO INT_EDIDD-SDATA.
APPEND INT_EDIDD.
CLEAR INT_EDIDD.
ENDIF.
ENDIF.
ENDIF.
Save and activate it
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Create a Transaction and Send IDoc
Go to transaction VF02 and search the bill for customer “1600” (we chose it)
Select a bill as shown and press enter.
Press enter
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Document is saved
Once again go to the same screen to find the IDOC no.
Click here
Click on Processing Block
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Idoc details are shown here
Here the IDoc is 0000000000819906
Monitoring IDoc
In WEo2 transaction gives the details as shown and finds the generated IDoc.
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The Extended Idoc data
The Status is ‘03’ which means
Idoc is successful
So the Extended IDOC is Created and successfully posted from Outbound.
In most cases basic Idoc will be suitable for your applications and if it is lacking with few set of fields then you
can extend the Idoc by inserting with the fields you required. This helps the easy usage of the existing
standard Idoc with little customization.
© 2009 SAP AG 35

Related Content
Extending an IDoc Type
Extension of IDoc types and Processing
Idoc homepage
For more information, visit the ABAP homepage.
© 2009 SAP AG 36

Disclaimer and Liability Notice
This document may discuss sample coding or other information that does not include SAP official interfaces and therefore is not
supported by SAP. Changes made based on this information are not supported and can be overwritten during an upgrade.
SAP will not be held liable for any damages caused by using or misusing the information, code or methods suggested in this document,
and anyone using these methods does so at his/her own risk.
SAP offers no guarantees and assumes no responsibility or liability of any type with respect to the content of this technical article or
code sample, including any liability resulting from incompatibility between the content within this document and the materials and
services offered by SAP. You agree that you will not hold, or seek to hold, SAP responsible or liable with respect to the content of this
document.
© 2009 SAP AG 37

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