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

WZRE_ALE_MONITOR019 - Overview

• Message type: E = Error

• Message class: WZRE_ALE_MONITOR -

• Message number: 019

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

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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WZRE_ALE_MONITOR019 - Details

• 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