How To Fix WZRE_ALE_MONITOR2020 - IDoc &1: Segment &2 not found (Comparison will be cancelled)

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_ALE_MONITOR2 - IDoc Monitor

• Message number: 020

• Message text: IDoc &1: Segment &2 not found (Comparison will be cancelled)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_ALE_MONITOR2020 - IDoc &1: Segment &2 not found (Comparison will be cancelled) ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZRE_ALE_MONITOR2020
  
  IDoc &1: Segment &2 not found (Comparison will be cancelled)
  
  Meaning / Cause:
  This error occurs during the ALE (Application Link Enabling) monitoring or IDoc comparison process. The system tries to compare IDoc segments between the sender and receiver or between different versions of IDocs, but it cannot find the specified segment (&2) in the IDoc (&1).
  Possible causes include:
  
  The segment &2 does not exist in the IDoc type &1 as per the current IDoc structure.
  The IDoc type or version being used is incorrect or inconsistent.
  The IDoc metadata or segment definitions are missing or corrupted in the system.
  There is a mismatch between the IDoc structure expected and the actual IDoc being processed.
  The IDoc has been customized or extended, but the comparison tool is using a standard segment list.
  
  
  When does it occur?
  
  During ALE monitoring or IDoc comparison in transaction codes like WE02, WE05, or custom ALE monitoring tools.
  When running IDoc comparison reports or tools that validate IDoc segments.
  During inbound or outbound processing if segment validation is performed.
  
  
  Solution / How to fix:
  
  
  Check the IDoc type and version:
  
  Verify that the IDoc type (&1) and version you are working with is correct.
  Use transaction WE30 (IDoc Type Development) to check the segments defined for the IDoc type.
  Use WE60 to display the IDoc documentation and confirm the segment &2 exists.
  
  
  
  Check segment existence:
  
  In WE31 (Segment Editor), check if the segment &2 exists and is active.
  If the segment is missing, it might have been deleted or not included in the IDoc type.
  
  
  
  Check for custom extensions:
  
  If the IDoc has been extended (custom segments added), ensure that the comparison tool or ALE monitor is aware of these extensions.
  Re-generate or update the IDoc metadata if necessary.
  
  
  
  Synchronize IDoc metadata:
  
  Sometimes, the IDoc metadata in the system can be out of sync.
  Run report RSNASTED or use transaction WE19 to test IDoc processing.
  Re-import or re-activate the IDoc type if needed.
  
  
  
  Check ALE configuration:
  
  Verify the ALE distribution model and partner profiles to ensure correct IDoc types and versions are used.
  Use transaction BD64 to check the distribution model.
  
  
  
  Debug or analyze the comparison tool:
  
  If this error occurs in a custom or standard comparison report, check the logic that reads the IDoc segments.
  Ensure the tool uses the correct IDoc metadata.
  
  
  
  
  Additional Information:
  
  IDoc (Intermediate Document): A standard SAP document format for electronic data interchange between SAP and external systems.
  Segment: A logical grouping of fields within an IDoc.
  ALE (Application Link Enabling): Technology for distributed system communication in SAP.
  Transactions to check IDocs and segments:
  
  WE02 / WE05: Display IDocs.
  WE30: IDoc type development.
  WE31: Segment editor.
  WE60: IDoc documentation.
  WE19: IDoc test tool.
  BD64: ALE distribution model.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  IDoc &1: Segment &2 not found (Comparison will be cancelled)
  
  
  Cause
  Segment &2 does not exist in IDoc type &1 or metadata mismatch
  
  
  Solution
  Verify IDoc type/version, check segment existence, synchronize metadata, check ALE config
  
  
  Tools
  WE30, WE31, WE60, WE02, WE05, WE19, BD64
  
  
  
  
  If you provide the actual IDoc type and segment names, I can help you with more specific steps.