Ale, Idoc

• 1 or more communication IDocs (intermediate documents: container for the application data) are created in the sending system database. An ALE distribution model, that needs to have been configured, determines which systems the IDocs are to be sent

• These communication IDocs, that contain the relevant application data of the transaction that was performed, are then passed to the ALE communication layer

• This layer performs an RFC call using the port definition and RFC destination determined through the customer model

• The IDocs are then transferred to the respective receiving systems. These could be SAP R/3, R/2 or external systems

• If the receiving system is an SAP system then:

o In the case of master data distribution the same transaction that was performed on the sending system is again performed on the receiving system with the data contained in the IDoc. This allows the data to go through the SAP checks before posting occurs

o In the case of transaction scenarios the relevant data is passed to the respective transactions in order to load the required application document. E.g.. A PO is loaded on the sending side, yet a SO is created on the receiving system

• Master data has another difference:

o It can be set up in such a way that any changes made to specific fields in master data tables can automatically trigger off the ALE distribution process for that particular master data object

o If a master data object is created or changed on a sending system and distributed to another system the respective transaction is used to either create or change that respective master data object on the receiving system

In general, if standard SAP can't perform the task required then neither can ALE. It doesn't add functionality, it merely decouples it and allows you to distribute it onto other remote systems.

The Detail as described by SAP

In the output processing one of the function modules of the application creates an IDoc, the so-called master IDoc. This IDoc is sent to the ALE layer where the following processing steps are applied:

Outbound processing

Receiver determination

An IDoc is similar to a normal letter in that it has a sender and a receiver. If the receiver has not been explicitly identified by the application, then the ALE layer uses the customer distribution model to help determine the receivers for the message.

The ALE layer can find out from the model whether any distributed systems should receive the message and, if so, then how many. The result may be that one, several or no receivers at all are found.

For each of the distributed systems that have been ascertained to be receiver systems, the data that is specified by the filter objects in the customer distribution model is selected from the master IDoc. This data is then used to fill an IDoc, and the appropriate system is entered as receiver.

Data selection

Segment filtering

Individual segments can be deleted from the IDoc before dispatch by selecting Functions for the IDoc processing -> Settings for filtering in ALE Customizing. The appropriate setting depends on the sending and receiving logical R/3 System.

Field conversion

Receiver-specific field conversions are defined under Functions for the IDoc processing -> Conversions.

General rules can be specified for field conversions; these are important for converting data fields to exchange information between R/2 and R/3 Systems. For example, the field "plant" can be converted from a 2-character field to a 4-character field.

The conversion is done using general EIS conversion tools (Executive Information System).

Version change

SAP ensures that ALE functions between different R/3 System releases. By changing the IDoc format you can convert message types of different R/3 releases. SAP Development use the following rules when converting existing message types:

• Fields may be appended to a segment type;

• Segments can be added;

ALE Customizing keeps a record of which version of each message type is in use for each receiver. The correct version of the communication IDoc is created in the ALE output.

The resulting IDocs (it is possible that several IDocs could be created in the receiver determination) are referred to as communication IDocs and are stored in the database. The dispatch control then decides which of these IDocs should be sent immediately. These are passed to the communications layer and are sent either using the transactional Remote Function Call (RFC) or via file interfaces (e.g. for EDI).

If an error occurs in the ALE layer, the IDoc containing the error is stored and a workflow is created. The ALE administrator can use this workflow to process the error.

Inbound processing

After an IDoc has been successfully transmitted to another system, inbound processing is carried out in the receiver system, involving the following steps in the ALE layer:

Segment filtering

Segment filtering functions the same way in inbound processing as in outbound processing.

Field conversion

Specific field conversions are defined in ALE Customizing.

The conversion itself is performed using general conversion tools from the EIS area (Executive Information System).

Generalized rules can be defined. The ALE implementation guide describes how the conversion rules can be specified.

One set of rules is created for each IDoc segment and rules are defined for each segment field.

The rules for converting data fields from an R/2-specific format to an R/3 format can be defined in this way. An example of this R/2 - R/3 conversion is the conversion of the plant field from a 2 character field to a 4 character field.

Data transfer to the application

Input control

When the IDocs have been written to the database, they can be imported by the receiver application.

IDocs can be passed to the application either immediately on arrival or can follow in batch.

You can post an inbound IDoc in three ways:

1. by calling a function module directly: A function is called that imports the IDoc directly. An error workflow will be started only if an error occurs.

2. by starting a SAP Business Workflow. A workflow is the sequence of steps to post an IDoc.

3. by starting a work item A single step performs the IDoc posting.

The standard inbound processing setting is that ALE calls a function module directly. For information about SAP Business Workflow alternatives refer to the online help for ALE programming.

ALE/ IDOC

http://help.sap.com/saphelp_erp2004/helpdata/en/dc/6b835943d711d1893e0000e8323c4f/content.htm

http://www.sapgenie.com/sapgenie/docs/ale_scenario_development_procedure.doc

http://edocs.bea.com/elink/adapter/r3/userhtm/ale.htm#1008419

http://www.netweaverguru.com/EDI/HTML/IDocBook.htm

http://www.sapgenie.com/sapedi/index.htm

http://www.sappoint.com/abap/ale.pdf

http://www.sappoint.com/abap/ale2.pdf

http://www.sapgenie.com/sapedi/idoc_abap.htm

http://help.sap.com/saphelp_erp2005/helpdata/en/0b/2a60bb507d11d18ee90000e8366fc2/frameset.htm

http://help.sap.com/saphelp_erp2005/helpdata/en/78/217da751ce11d189570000e829fbbd/frameset.htm

http://www.allsaplinks.com/idoc_sample.html

http://www.sappoint.com/abap.html

http://help.sap.com/saphelp_erp2004/helpdata/en/dc/6b835943d711d1893e0000e8323c4f/content.htm

http://www.sapgenie.com/sapgenie/docs/ale_scenario_development_procedure.doc

http://edocs.bea.com/elink/adapter/r3/userhtm/ale.htm#1008419

http://www.netweaverguru.com/EDI/HTML/IDocBook.htm

http://www.sapgenie.com/sapedi/index.htm

http://www.allsaplinks.com/idoc_sample.html

Check these step-by-step links

https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/ccab6730-0501...

https://sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/8fd773b3-0301-001...

https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/3c5d9ae3-0501...

***********Rewards some points.

Rgds,

P.Naganjana Reddy

Read only

706

SAP Managed Tags
ABAP Connectivity

Hi Asha Bee,

Welcome to SDN.

Sending System(Outbound ALE Process)

Tcode SALE ? for

a) Define Logical System

b) Assign Client to Logical System

Tcode SM59-RFC Destination

Tcode BD64 ? Create Model View

Tcode BD82 ? Generate partner Profiles & Create Ports

Tcode BD64 ? Distribute the Model view

Message Type MATMAS

Tcode BD10 ? Send Material Data

Tcode WE05 ? Idoc List for watching any Errors

Receiving System(Inbound ALE )

Tcode SALE ? for

a) Define Logical System

b) Assign Client to Logical System

Tcode SM59-RFC Destination

Tcode BD64 ? Check for Model view whether it has distributed or not

Tcode BD82 -- Generate partner Profiles & Create Ports

Tcode BD11 Getting Material Data

Tcode WE05 ? Idoc List for inbound status codes

ALE IDOC Steps

Sending System(Outbound ALE Process)

Tcode SALE ?3 for

a) Define Logical System

b) Assign Client to Logical System

Tcode SM59-RFC Destination

Tcode BD64 !V Create Model View

Tcode BD82 !V Generate partner Profiles & Create Ports

Tcode BD64 !V Distribute the Model view

This is Receiving system Settings

Receiving System(Inbound ALE )

Tcode SALE ?3 for

a) Define Logical System

b) Assign Client to Logical System

Tcode SM59-RFC Destination

Tcode BD64 !V Check for Model view whether it has distributed or not

Tcode BD82 -- Generate partner Profiles & Create Ports

Tcode BD11 Getting Material Data

Tcode WE05 !V Idoc List for inbound status codes

Message Type MATMAS

Tcode BD10 !V Send Material Data

Tcode WE05 !V Idoc List for watching any Errors

1)a Goto Tcode SALE

Click on Sending & Receiving Systems-->Select Logical Systems

Here Define Logical Systems---> Click on Execute Button

go for new entries

1) System Name : ERP000

Description : Sending System

2) System Name : ERP800

Description : Receiving System

press Enter & Save

it will ask Request

if you want new request create new Request orpress continue for transfering the objects

B) goto Tcode SALE

Select Assign Client to Logical Systems-->Execute

000--> Double click on this

Give the following Information

Client : ERP 000

City :

Logical System

Currency

Client role

Save this Data

Step 2) For RFC Creation

Goto Tcode SM59-->Select R/3 Connects

Click on Create Button

RFC Destination Name should be same as partner's logical system name and case sensitive to create the ports automatically while generating the partner profiles

give the information for required fields

RFC Destination : ERP800

Connection type: 3

Description

Target Host : ERP000

System No:000

lan : EN

Client : 800

User : Login User Name

Password:

save this & Test it & RemortLogin

3)

Goto Tcode BD64 -- click on Change mode button

click on create moduleview

short text : xxxxxxxxxxxxxx

Technical Neme : MODEL_ALV

save this & Press ok

select your just created modelview Name :'MODEL_ALV'.

goto add message type

Model Name : MODEL_ALV

sender : ERP000

Receiver : ERP800

Message type :MATMAS

save & Press Enter

4) Goto Tcode BD82

Give Model View : MODEL_ALV

Partner system : ERP800

execute this by press F8 Button

it will gives you sending system port No :A000000015(Like)

5) Goto Tcode BD64

seelct the modelview

goto ~~>edit~~>modelview-->distribute

press ok & Press enter

6)goto Tcode : BD10 for Material sending

Material : mat_001

Message Type : MATMAS

Logical System : ERP800

and Execute

7)goto Tcode : BD11 for Material Receiving

Material : mat_001

Message Type : MATMAS

and Execute --> 1 request idoc created for message type Matmas

press enter

Here Master Idoc set for Messge type MATMAS-->press Enter

1 Communication Idoc generated for Message Type

this is your IDOC

Change Pointers

I know how to change the description of a material using ALE Change Pointers.

I will give the following few steps

1) Tcode BD61---> check the change pointers activated check box

save and goback.

2) Tcode BD50---> check the MATMAS check box save and comeback.

3) Tcode BD51---> goto IDOC_INPUT_MATMAS01 select the checkbox save and comeback.

4) Tcode BD52---> give message type : matmas press ok button.

select all what ever you want and delete remaining fields.

save & come back.

5) 5) go to Tcode MM02 select one material and try to change the description and save it

it will effects the target systems material desciption will also changes

6) goto Tcode SE38 give program Name is : RBDMIDOC and Execute

give Message type : MATMAS and Executte

ALE/IDOC Status Codes/Messages

-

01 Error --> Idoc Added

30 Error --> Idoc ready for dispatch(ALE Service)

then goto SE38 --> Execute the Program RBDMIDOC

29 Error --> ALE Service Layer

then goto SE38 --> Execute the Program RSEOUT00

03 Error --> Data Passed to Port ok

then goto SE38 --> Execute the Program RBDMOIND

12 Error --> Dispatch ok

Inbound Status Codes

50 Error --> It will go for ALE Service Layer

56 Error --> Idoc with Errors added

51 Error --> Application Document not posted

65 Error --> Error in ALE Service Layer

for 51 or 56 Errors do the following steps

goto WE19 ~~> give the IDOC Number and Execute~~>

Press on Inbound function Module

for 65 Error --> goto SE38 --> Execute the Program RBDAPP01 then your getting 51 Error

For more info, check these links.

http://help.sap.com/saphelp_erp2004/helpdata/en/dc/6b835943d711d1893e0000e8323c4f/content.htm

http://www.sapgenie.com/sapgenie/docs/ale_scenario_development_procedure.doc

http://edocs.bea.com/elink/adapter/r3/userhtm/ale.htm#1008419

http://www.netweaverguru.com/EDI/HTML/IDocBook.htm

http://www.sapgenie.com/sapedi/index.htm

http://www.sappoint.com/abap/ale.pdf

http://www.sappoint.com/abap/ale2.pdf

http://www.sapgenie.com/sapedi/idoc_abap.htm

http://help.sap.com/saphelp_erp2005/helpdata/en/0b/2a60bb507d11d18ee90000e8366fc2/frameset.htm

http://help.sap.com/saphelp_erp2005/helpdata/en/78/217da751ce11d189570000e829fbbd/frameset.htm

http://www.allsaplinks.com/idoc_sample.html

http://www.sappoint.com/abap.html

http://help.sap.com/saphelp_erp2004/helpdata/en/dc/6b835943d711d1893e0000e8323c4f/content.htm

Hope this resolves your query.

Reward all the helpful answers.

Regards

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