How To Fix LTR2_CHANGELOG151 - Alias changed

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_CHANGELOG -

• Message number: 151

• Message text: Alias changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_CHANGELOG151 - Alias changed ?

  The SAP error message LTR2_CHANGELOG151: Alias changed typically occurs in the context of SAP Landscape Transformation (SLT) when there is a mismatch or inconsistency in the data model, particularly related to the alias names of database tables or fields. This can happen during the configuration of data replication or when changes are made to the source or target systems.
  Cause:
  
  Alias Name Change: The error indicates that an alias name for a table or field has been changed in the source system, but the SLT configuration has not been updated to reflect this change.
  Inconsistent Metadata: If the metadata in the SLT system does not match the source system due to changes in the database schema, it can lead to this error.
  Replication Configuration Issues: Changes in the replication configuration or the underlying database structure can also trigger this error.
  
  Solution:
  
  Check Alias Names: Verify the alias names in the source system and ensure they match the configuration in the SLT system. If there have been changes, update the SLT configuration accordingly.
  Reconfigure SLT: If necessary, reconfigure the SLT settings to align with the current state of the source system. This may involve re-adding the tables or fields that have changed.
  Refresh Metadata: You may need to refresh the metadata in the SLT system. This can often be done by reloading the configuration or using specific SLT transaction codes to update the metadata.
  Check Logs: Review the SLT logs for more detailed information about the error. This can provide insights into what specifically has changed and what needs to be corrected.
  Consult Documentation: Refer to SAP documentation or notes related to SLT and the specific error message for additional troubleshooting steps and best practices.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTRC (SLT Configuration) and LTR2 (SLT Replication Monitor) to manage and monitor your SLT setup.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  SLT Documentation: Review the official SAP documentation for Landscape Transformation to understand the configuration and management of data replication.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.