ALE, EDI, & IDoc Technologies for SAP, 2nd Edition. Part llThe SAP EDI Interface. Arvind Nagpal is an active leader in the e−Business and B2B integration. Arvind Nagpal is the author of Ale, EDI, & Idoc Technologies for SAP ( avg rating, 31 ratings, 4 reviews, published ), Ale, Edi, & I Doc Technolo. ale, edi & idoc technologies for sap (pdf) by arvind nagpal. (ebook). The purpose of this book is to educate SAP R/3 users, technical and functional consultants in.
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The control record structure is the same for all IDoc types. One or many data records. An IDoc can have multiple data records, as defined by the IDoc structure. Segments translate into data records. Data records store the application data, such as download order header information and download order detail lines.
One or many status records. Multiple status records are usually attached to an IDoc. Status records are attached to an IDoc throughout the process, as the IDoc achieves goes through different stagesdifferent milestones. A status code, date and time are assigned at every milestonestage. Transaction WE47 will give you a list of status codes and their definitions. Codes 01 through 49 are used for outbound IDocs and 50 onwards for inbound.
Multiple messages per IDoc type.
ALE, EDI & IDoc Technologies for SAP by Arvind Nagpal
A message represents a specific type of document transmitted between two partners. Orders, order response, customer master are examples of messages. An IDoc type can be used to represent several message types of course, the messages must be logically related. We will use a simple example where the system sends out a monthly report for each employees weekly hours.
The report is divided in three parts: Header, Details and Summary.
Before going to this, it is important get the right standards. Naming Convention: Names assigned to an IDoc type should be meaningful. It should tell the user what that IDoc does. Maximum length allowed is 30 characters for release 4x. Here is a format for naming custom IDocs. This number denotes the version of the IDoc. In general the version number is incremented by one.
You should follow a similar strategy when creating a new Basic IDoc type.
Use industry standards whenever possible for your data elements. Consult EDI standards for the appropriate length and data types and ISO codes for fields such as measurement units and currencies. Organize the document to contain header, detail and summary information.
Example: The following diagram shows processing one employee at a time. If you want to support multiple entries of employees then the second diagram shows how to set up the parent-child relationship Avoid having too many mandatory segments. Having extra mandatory segments reduces the reusability of the IDoc. Make sure that the segments are less than bytes.
If they are bigger than , try to split them. Combine IDoc segments that are functionally similar into one segment whenever possible.
Create segments that can be used by other IDoc. Formatting Guidelines Data fields in a segment can contain only alphanumeric values. Character fields are automatically left aligned, but number values when assigned to a character field are padded with spaces on the left. These spaces must be removed from the fields programmatically using the condense command. Data is not case sensitive. Negative values are indicated by a minus sign after the value.
Therefore is written as Numbers with fractional values use a period to represent the decimal point. Floating-point numbers also use a period to represent the decimal point. No formatting is used to separate values in the thousands. The following five steps will guide you to successfully creating a New IDoc. See Appendix A for creating a new developing class.
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It is suggested that you follow a top-down approach if you are stating at a business-document level and a bottom-up approach at the field level. Break the document fields functionally related into segments. Group these fields into segments groups and arrange them in an IDoc type. Identify any parent-child relationship. After this you are now ready to build your basic IDoc type. Analysis of our Case brings out the following: Report is divided into three parts: Header, Details and summary.
Right away we know that we will need at least three segments. Header and summary will have only one entry whereas week details has multiple entries. The weekly details can further be divided into two. Week number, hours worked, hourly rate Client site, work description This is because an employee can work multiple times in the same client site but the reverse is not true.
Idoc And Ale
An employee can not work at multiple client sites at one time. Here is an IDoc type representation of the flat file structure. The header is made Mandatory because a Monthly report will not make sense without the employees basic information and also allows the reusability of the IDoc if only the Employee information needs to be sent out.
This signifies that the child segment cannot exist without the parent and is commonly used for text segments. This shows that this data record will occur multiple times.
In order to create segments we first need to make sure that all the required data elements exist. If SAP data elements do not match then we will need to create new ones. Only in rare situation a new elements needs to be created. See 1. Go to transaction SE Enter the name for your data element, select the radio button for data type and click the command button for create.
Select the radio button for data element. Enter a short text, either a domain or built in type and length. In the Field label give lengths and descriptions for your data type. But first check if there are any existing that we can use. In our case we will have to create four new segments. Follow these steps to successfully create a new segment. Please consult the guidelines above before attempting to create a new segment. Technically, a segment is implemented in three physically separate pieces.
Go to transaction WE31 segment editor used to create or change a segment. Enter the name for your Segment Type version independent and click on the create button.
Enter the Short text and the field with the appropriate Data Elements. Click on save and the system will automatically generate the Segment Definition version dependent. It generally starts with Z2 and end with the version number.
We will create the following four segments as above. Follow these steps to create a Basic IDoc Type 1. Execute the transaction WE Enter a meaningful name for the IDoc type. Consult the guide above. Click on create and a window will pop up to enter the description. Select the Create new option, enter the description and hit enter.
On the next screen: highlight the IDoc type and click on the create icon. This will allow you to enter the segment type and definite its attributes.
Choose the appropriate values and press Enter. The system will transfer the segment type to the IDoc Editor. Once all the segments have been added, cick on save.
This is what the screen looks like once all the segments have been defined. A selection program exists for each message type. A selection program's design depends on the triggering mechanism used in the process. Filter Objects In a distributed environment, each recipient of data can have different requirements for the data being distributed.
Filter objects remove unwanted data for each recipient of data. Port Definition A port is used in an outbound process to define the medium in which documents are transferred to the destination system. Partner ProfileA partner profile specifies the components used in an outbound process the logical name of the remote SAP system, IDoc type, message type, and tRFC port , an IDocs packet size, the mode in which the process sends an IDoc batch versus immediate , and the person to be notified in case of errors.
Service Programs and Configuration Tables The outbound process, being asynchronous, is essentially a sequence of several processes that work together.
SAP provides service programs and configuration tables to link these programs and provide customizing options for an outbound process. BD character alphanumericNote: Make an entry for both sending and receiver systems in all the systems in the distributed network.
SCC4Allocate the client to the logical system in all the systems in the distributed network.
Type 3EDI subsystem: Logon and security tab. These provide a selection screen to specify the objects to be transferred and the receiving system. These when executed calls the Idoc selection program which is hard-coded in the program. Outbound Process via Change PointersThis technique is used to initiate the outbound process automatically when master data is created or changed. A standard program, RBDMIDOC, is scheduled to run on a periodic basis to evaluate the change pointers for a message type and start the ALE process for distributing the master data to the appropriate destination.
If a user changes the basic description of a material master or creates a new material, the system automatically generates an IDoc for the material and sends it to the destination system. Outbound Process- Master Data Distribution contd. BD64Used to model a distributed environment in which you specify messages exchanged between sending and receiving systems.
A distribution model is maintained on only one system. It is distributed to other systems for use. Two models cannot distribute the same message between the same set of senders and receivers. Distribution Model contd.
BD82Partner profiles can be generated automatically for your partner systems. BD64After all the necessary configurations for Model message type, port, partner profile, logical systems distribute the model to the systems in the distributed network. After selecting the Distribute, select the target Logical system to proceed.
The Idoc contains the material master data to be transferred to the receiving system. Standard programs for several master data objects exist in SAP. If at least one receiver exists, then the IDoc selection program reads the master data object from the database and creates a master IDoc from it.
The master IDoc is stored in memory. Outbound Process- Push Approach contd. If a receiver is not found, processing ends. For each receiver, these steps occur.
IDocs dispatched to the communication layerThe timing of dispatch is read from the output mode in partner profile. If the mode is set to Transfer IDoc Immed. Processing in the Communication LayerThen the system reads the port definition from the partner profile and from it the RFC destination is known.
Then the Idoc gets a status code of 12 Dispatch OK. Control data is received via the CTS process. Filter objectsConversion rulesPartner profile Ex: A posting program exists for each message. Each posting program is assigned a process code. A process code can point to a function module or a workflow. Partner profileThis specifies the partner number, message type, process code, the mode in which IDocs are processed batch versus immediate , and the person to be notified in case of errors.
An inbound record exists to receive an inbound message from remote SAP system. Inbound Components contd. The IDoc to be processed is passed as an input parameter. Inbound Process via Function Module contd. On control record, direction, message type, and IDoc type is checked.
Segment filtering and conversion. Application IDoc is createdThe application IDoc is stored in the database, and a syntax check is performed on it. IDoc is marked ready for dispatch: IDoc is passed to the posting programThe partner profile table is read.
If the posting is successful, an application document is created. That her parents were killed by a Satan worshipper and that he is trying to kill Adi next. Yes I have, 1st walk-in 2nd receive a demo 3rd go into the office 4th hand them your wallet credit card info 5th now give them your check book automatic payments 6th sign your life away 7th step out of the office to be greeted ALE initiated snap kick to the groin 8th ask yourself.
Oh, oh fine no its okay fine no whatever its okay yeah whatever thats cool no whatever thats cool its okay yeah its cool.
Such responsibilities make me even more nervous, peoples lives are in my hands, our whole civilization is in my hands. If you want to sell a few of your books to friends try a print-on-demand publisher. She has issues dont worry we love you too questions, Family Relationships,Friends Do you think my teacher likes me. Kinsey and Me: Stories by Sue Grafton.NOTES: You cannot maintain a message type between the same sender and receiver in more than one customer distribution model.
To SAP from Tibco. Zvioule Ma Fuentes. Segment componentsSegment type: Data Record: In the case of the data records, the segment name , segment number and short text are displayed. Naming Convention: Names assigned to an IDoc type should be meaningful.