How To Fix WZRE_ALE_MONITOR019 - IDoc type differs (& <-> &): Comparison useless

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_ALE_MONITOR -

• Message number: 019

• Message text: IDoc type differs (& <-> &): Comparison useless

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_ALE_MONITOR019 - IDoc type differs (& <-> &): Comparison useless ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZRE_ALE_MONITOR019: IDoc type differs (& <-> &): Comparison useless
  
  Cause:
  This error occurs during ALE (Application Link Enabling) or IDoc processing when the system tries to compare or process IDocs but finds that the IDoc types involved do not match. Specifically, the IDoc type expected by the receiving system or process is different from the IDoc type actually received or being compared.
  
  The placeholders & <-> & in the message indicate the two differing IDoc types.
  This mismatch makes any comparison or processing between these IDocs meaningless or "useless" because the structure and data segments differ.
  Common scenarios:
  
  Incorrect partner profile configuration where the wrong message type or IDoc type is assigned.
  Mismatch in the IDoc type definitions between sender and receiver systems.
  Transport or version inconsistencies where one system has an updated IDoc type and the other does not.
  Manual or programmatic errors where IDocs are incorrectly assigned or processed.
  
  
  
  
  Solution:
  
  
  Check Partner Profiles:
  
  Go to transaction WE20.
  Verify that the partner profile for the involved partner has the correct message type and IDoc type assigned.
  Ensure that the outbound and inbound parameters match the expected IDoc types.
  
  
  
  Verify IDoc Types:
  
  Use transaction WE30 to check the IDoc types involved.
  Confirm that the IDoc types on both sender and receiver systems are consistent and compatible.
  
  
  
  Check ALE Distribution Model:
  
  Use transaction BD64.
  Verify that the distribution model is correctly set up with the right message types and IDoc types.
  
  
  
  Check for Version Mismatches:
  
  If the systems are on different releases or have different versions of IDoc types, consider synchronizing or updating the IDoc definitions.
  Transport the correct IDoc types if necessary.
  
  
  
  Review Custom Code or Interfaces:
  
  If custom programs or interfaces are involved, ensure they are not mixing IDoc types incorrectly.
  Debug or analyze the code to confirm the correct IDoc type is used.
  
  
  
  Reprocess or Recreate IDocs:
  
  If the IDocs are corrupted or incorrectly created, consider reprocessing or recreating them with the correct IDoc type.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  WE02 / WE05: Display IDocs to analyze the IDoc types and data.
  WE20: Partner profiles.
  WE30: IDoc type development.
  BD64: ALE distribution model.
  WE19: Test tool for IDocs.
  
  
  
  Notes and Documentation:
  
  SAP OSS Notes related to ALE and IDoc type mismatches.
  SAP Help Portal documentation on ALE and IDoc processing.
  
  
  
  Common Terms:
  
  IDoc Type: Defines the structure of the IDoc (segments, fields).
  Message Type: Defines the business context of the IDoc.
  Partner Profile: Configuration for communication partners in ALE.
  
  
  
  
  If you provide the exact IDoc types involved (the values in the placeholders), I can help you with more specific guidance.