How To Fix E0479 - Data element & for segment documentation unknown in Dictionary

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 479

• Message text: Data element & for segment documentation unknown in Dictionary

What causes this issue?

Data element &v1& was used for the segment documentation. This data
element cannot be found in the Data Dictionary.

System Response

The segment documentation cannot be used.

How to fix this error?

Please define the data element in the Data Dictionary or use another
data element.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0479 - Data element & for segment documentation unknown in Dictionary ?

  The SAP error message E0479, which states "Data element & for segment documentation unknown in Dictionary," typically occurs when there is an issue with the data element being referenced in a segment of an IDoc or a similar structure. This error indicates that the system cannot find the specified data element in the Data Dictionary.
  Cause:
  
  Missing Data Element: The data element referenced in the IDoc segment does not exist in the SAP Data Dictionary.
  Incorrect Configuration: The IDoc segment may be incorrectly configured, pointing to a data element that has been deleted or renamed.
  Transport Issues: If the IDoc structure was transported from one system to another, the data element may not have been included in the transport.
  Namespace Issues: If the data element is in a different namespace or client, it may not be accessible in the current context.
  
  Solution:
  
  Check Data Element: Verify that the data element exists in the Data Dictionary (transaction SE11). If it does not exist, you may need to create it or correct the reference in the IDoc segment.
  Review IDoc Configuration: Check the configuration of the IDoc segment (transaction WE30 or WE31) to ensure that it is correctly pointing to the right data element.
  Transport Check: If the issue arose after a transport, ensure that all necessary objects, including the data element, were included in the transport request.
  Namespace Verification: Ensure that the data element is in the correct namespace and is accessible in the current client.
  Rebuild IDoc Structure: If the IDoc structure is corrupted, consider rebuilding it or regenerating it to ensure all references are correct.
  
  Related Information:
  
  Transaction Codes:
  
  SE11: Data Dictionary (to check data elements)
  WE30: IDoc Type Development (to check IDoc types)
  WE31: IDoc Segment Development (to check IDoc segments)
  
  
  Documentation: Review SAP documentation related to IDocs and Data Dictionary for more detailed information on how to manage data elements and IDoc structures.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  If the problem persists after following these steps, consider reaching out to your SAP Basis or development team for further assistance.