How To Fix LK059 - Segment E1MBXYJ could not be assigned to segment E1MBXYI

LK059 - Overview

• Message type: E = Error

• Message class: LK - WM -> SUB connection messages

• Message number: 059

• Message text: Segment E1MBXYJ could not be assigned to segment E1MBXYI

What causes this issue?

When analysing inbound IDoc WMMBID01, the system was unable to assign
the segment because the IDoc structure has errors.

System Response

The system issues an error message and does not process the IDoc.

How to fix this error?

Display the IDoc and check its structure. In particular, you should
verify whether the sequence of the IDoc segments is identical with the
hierarchical structure defined in IDoc maintenance.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LK059 - Segment E1MBXYJ could not be assigned to segment E1MBXYI ?

  The SAP error message LK059, which states that "Segment E1MBXYJ could not be assigned to segment E1MBXYI," typically occurs in the context of IDoc processing, particularly when dealing with the inbound or outbound processing of IDocs related to material documents or similar transactions.
  
  Cause:
  The error usually arises due to one of the following reasons:
  
  
  Data Structure Mismatch: The segments E1MBXYJ and E1MBXYI are part of the IDoc structure, and this error indicates that there is a mismatch in the expected data structure. This could be due to missing mandatory fields or incorrect data types.
  
  
  
  Configuration Issues: There may be configuration issues in the IDoc type or message type that prevent the segments from being correctly assigned.
  
  
  Inconsistent Data: The data being sent or received may not conform to the expected format or structure, leading to assignment issues.
  
  
  Version Mismatch: If there are different versions of the IDoc structure being used, it can lead to compatibility