How To Fix B2058 - Not uniquely defined message types in the distribution model.

SAP Error Message - Details

• Message type: E = Error

• Message class: B2 - ALE Basis tools messages

• Message number: 058

• Message text: Not uniquely defined message types in the distribution model.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message B2058 - Not uniquely defined message types in the distribution model. ?

  The SAP error message B2058, which states "Not uniquely defined message types in the distribution model," typically occurs in the context of SAP's Application Link Enabling (ALE) and is related to the configuration of the distribution model. This error indicates that there are multiple message types defined for the same logical system in the distribution model, leading to ambiguity in message processing.
  Cause:
  
  Duplicate Message Types: The error arises when there are multiple entries for the same message type in the distribution model for a particular logical system.
  Incorrect Configuration: The distribution model may not be configured correctly, leading to overlapping or conflicting message types.
  Logical System Issues: There may be issues with the logical systems defined in the ALE configuration, such as incorrect or duplicate entries.
  
  Solution:
  To resolve the B2058 error, follow these steps:
  
  
  Check Distribution Model:
  
  Go to transaction BD64 (Distribution Model).
  Review the distribution model for the relevant logical systems and message types.
  Ensure that each message type is uniquely defined for each logical system.
  
  
  
  Remove Duplicates:
  
  If you find duplicate message types for the same logical system, remove or deactivate the duplicates.
  Ensure that each message type is only assigned once to each logical system.
  
  
  
  Adjust Message Types:
  
  If necessary, adjust the message types to ensure that they are correctly defined and do not conflict with each other.
  
  
  
  Transport Requests:
  
  If changes are made in a development environment, ensure that they are transported to the appropriate environments (e.g., quality assurance, production) as needed.
  
  
  
  Testing:
  
  After making the necessary adjustments, test the configuration to ensure that the error no longer occurs and that messages are processed correctly.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  BD64: Distribution Model Maintenance
  BD87: Reprocessing of IDocs
  WE20: Partner Profiles
  WE21: Port Definition
  
  
  
  Documentation: Refer to SAP Help documentation for ALE and distribution model configuration for more detailed guidance.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to the B2058 error or provide additional troubleshooting steps.
  
  
  By following these steps, you should be able to resolve the B2058 error and ensure that your distribution model is correctly configured for message processing in SAP.