Creation of Custom IDOC Type

By Sarang Kahu

1.Business Case

SAP R/3 systems send out data through IDoc (Intermediate Document), which in internally has segments and fields containing the data. 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, either few fields are to be added or subtracted, or completely new structure- IDoc needs to be created. This are called as Custom – IDOC Types. Following blog gives out step-by-step approach for creation of the same.

2.Development of IDOC types

2.1 Creation of Segment Types

Run T-code ‘WE31’ to create segment type, which has fields to contain the data and are added to the segment type in the same transaction. The data stored contained into the segment mesh is finally stored in EDISEGMENT table.

Add your custom fields as per business scenario.   

 

To make it available to other transactions, release the segment created.

Go to Edit -> Set Release

2.2 Creation of IDoc type

Run T-code ‘WE30’ to create custom IDoc type. Enter the name of custom IDoc you want to create and click on red box for creation.

 

Now, it takes you to following screen. Here you can add description for your IDoc type. Also you can specify name of existing IDoc for Copy or Successor mode. 

Now, you can maintain attributes of the custom IDoc, which consists of attaching segment type created above to the IDoc type. Also specifying the details of frequency of these segments getting filled i.e. Maximum and Minimum number. Fill the necessary details and release this IDoc type as well.

2.3 Creation of logical message types 

Run T-code ‘WE81’ to create the logical message types. Go to Edit mode and click New Entry to go to following screen. 

 

Save the entered data.

2.4 Linking Message type and IDoc type.

Run T-Code ‘WE82’. Now we have to link these created IDoc types and Message types. Enter the message type name, Basic IDoc type (ZCUST_IDC) and release type to be linked. In the data transfer through ALE, these message types represent the IDOC structure.

 

Extension field above will be used as per the Extended IDoc type scenario i.e. in case of addition of few more fields into the existing IDoc type. 

Hence, now our Creation of Custom IDoc is ready to use in ALE scenarios.

 

 

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