n Business scenario, it is required to upload the data into R/3 and process the data in the IDOC form only. The data can be migrated to R/3 SAP system using IDOC Generation Method in LSMW. The data to be uploaded can be regarding material, vendor, customer etc. IDOC is the container, which stores the data in structured format and is used to communicate between R/3 systems. IDOC structure includes Status Record for storing status information of IDOC dispatch, Data Record for storing data into segments and its corresponding fields and Control Record has receiver and source system details etc. 

This document contains Step-by-Step instructions to use LSMW to generate and process IDOC from the data file available. In first part user-defined IDOC structure is created and required ALE settings are done .In the Second part, this IDOC structure is used in the LSMW IDOC. 

Part One: To create IDOC structure 

Step One:  Run transaction WE31.Create Segment with name ‘ZEMP_SEG’. 

 

Step Two:  Input the fields for the segment structure, which would be required in LSMW for mapping purpose. 

 

Step Three: Now, Go to Edit -> Set Release, so that you can use this segment in the R/3 system further.

 

Step Four: Run transaction ‘we30’ and enter IDOC structure name we want to create.

Here, IDOC structure name is ‘ZEMP_IDC’.

 Step Five: 

(A) Add segment created earlier to this IDOC type ‘ZEMP_IDC’. 

The maximum and minimum repetitions can be from 000000000000 to 99999999999.

Choose any number rang as per requirement. 

Now, Go back to earlier page and Click Edit-> Set Release. 

(B)Create new Message type in transaction ‘WE81’.

 

(C) Attach message type and IDOC type with the help of transaction ‘WE82’.

 

Step Six: Go to transaction ‘SALE’. Click as marked in red color.

 

Now add two logical system names for sender and receiver ex. IDC64 and IDC87. 

Step Seven: Now assign clients to the logical systems created. 

 

Select the client of your current system as per decision to make that system sender or receiver.

 

After clicking on to Goto->Details , you come to following screen. Input receiver system ‘IDC87’  to client 800.

Here in our LSMW using IDOC method, no need to assign client to sender as we are doing Inbound IDOC Processing (i.e. Receiver side). 

Step Eight: Run transaction ‘WE21’ to create File port. Give directory name as the location of your file to be read. Give dummy name for ‘Outbound file’

field. Step Nine:  Run ‘SM59’ transaction to create RFC connection. Please make sure here connection type is ‘T’ for

TCP/IP .   

Step Ten: Run transaction ‘WE20’ to create partner profile for partner of receiver system (IDC87) i.e. sender system (IDC64).

 

Step Eleven: Create process code using ‘WE42’.

After saving this data, you go screen as below to attach function module to the process code. The process code is the representation of the function module for inbound idoc processing.