How To Fix WZRE_IDOC001 - No mapping exists for Message Type &1 and Segment type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_IDOC - Messages For IDOC Tool

• Message number: 001

• Message text: No mapping exists for Message Type &1 and Segment type &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_IDOC001 - No mapping exists for Message Type &1 and Segment type &2 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZRE_IDOC001 No mapping exists for Message Type &1 and Segment type &2
  
  Cause:
  This error occurs during IDoc processing when the system tries to find a mapping for a specific Message Type and Segment Type, but no mapping is defined or maintained in the system.
  
  The Message Type (&1) refers to the type of IDoc message being processed (e.g., ORDERS, INVOIC, etc.).
  The Segment Type (&2) refers to the specific segment within the IDoc structure.
  
  The error indicates that the system cannot find a corresponding mapping rule or configuration for the given message type and segment type combination. This usually happens in scenarios involving:
  
  IDoc inbound or outbound processing with custom or standard message types.
  ALE/EDI processing where segment mapping is required.
  When using tools like SAP PI/PO or SAP Process Integration for IDoc mapping.
  When a custom segment is added but not mapped.
  Missing or incomplete configuration in the IDoc mapping or partner profiles.
  
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Check the IDoc Message Type and Segment:
  
  Identify the exact message type and segment type causing the error.
  Use transaction WE02 or WE05 to display the IDoc and verify the segment.
  
  
  
  Verify Mapping Configuration:
  
  If you are using SAP PI/PO or any middleware, check the mapping objects for the message type and segment.
  Ensure that the segment is mapped correctly in the mapping program or graphical mapping.
  
  
  
  Maintain Segment Mapping in SAP:
  
  If the mapping is done inside SAP (e.g., using transaction WE30 for segment definitions and WE31 for segment editing), verify that the segment is defined and linked properly.
  For custom segments, ensure they are included in the message type definition (transaction WE81).
  
  
  
  Check Partner Profile and Message Type Configuration:
  
  Use transaction WE20 to check the partner profile.
  Ensure the message type is correctly assigned and configured for inbound/outbound processing.
  
  
  
  Maintain IDoc Type and Segment Mapping:
  
  Use transaction WE82 to check the message type to basic type assignment.
  Use transaction WE81 to check the message type and segment assignments.
  If necessary, add the missing segment mapping.
  
  
  
  Transport and Activate Changes:
  
  After making changes, transport them to the relevant system.
  Test the IDoc processing again.
  
  
  
  Consult SAP Notes and Documentation:
  
  Sometimes, SAP provides notes for specific message types or segments.
  Search SAP Support Portal for notes related to your message type and segment.
  
  
  
  
  Related Information:
  
  
  Transactions:
  
  WE02 / WE05 — Display IDocs
  WE20 — Partner Profiles
  WE81 — Message Type to Segment Assignment
  WE82 — Message Type to Basic Type Assignment
  WE30 — IDoc Type Development
  WE31 — Segment Editor
  
  
  
  SAP Notes:
  
  Check SAP Notes related to your specific message type or segment.
  Example: SAP Note 123456 (hypothetical) might address missing segment mappings.
  
  
  
  Documentation:
  
  SAP Help Portal on IDoc processing and ALE configuration.
  SAP PI/PO mapping guides if middleware is involved.
  
  
  
  
  Summary:
  The error WZRE_IDOC001 No mapping exists for Message Type &1 and Segment type &2 means the system cannot find a mapping for the specified message and segment type. The solution involves verifying and maintaining the mapping configuration in SAP or middleware, ensuring the segment is properly defined and assigned to the message type, and checking partner profiles and IDoc type assignments.
  
  If you provide the exact message type and segment type, I can help you with more specific instructions!