How To Fix LTR2_CHANGELOG104 - Source table changed

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_CHANGELOG -

• Message number: 104

• Message text: Source table changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_CHANGELOG104 - Source table changed ?

  The SAP error message LTR2_CHANGELOG104 indicates that there has been a change in the source table that is being used for a data replication or change log process. This typically occurs in the context of SAP Landscape Transformation (SLT) or when using Change Data Capture (CDC) mechanisms.
  Cause:
  The error is triggered when the structure of the source table (e.g., columns added, removed, or modified) has changed after the initial configuration of the replication or change log process. This can happen due to:
  
  Schema Changes: Alterations in the database schema, such as adding or dropping columns, changing data types, or modifying constraints.
  Configuration Changes: Changes in the SLT configuration that affect how the source table is being monitored or replicated.
  Data Model Changes: Changes in the underlying data model that impact the source table.
  
  Solution:
  To resolve the LTR2_CHANGELOG104 error, you can follow these steps:
  
  
  Check Source Table Structure: Review the structure of the source table in the database to identify any changes that have been made. You can use SQL queries or database management tools to inspect the table schema.
  
  
  Update SLT Configuration:
  
  If there have been changes to the source table, you may need to update the SLT configuration to reflect these changes.
  In the SLT configuration, you can reinitialize the replication for the affected table. This can be done through the SLT management interface (transaction code LTRC).
  
  
  
  Reinitialize the Table:
  
  In the SLT configuration, select the affected table and choose the option to reinitialize it. This will recreate the change log and ensure that it aligns with the current structure of the source table.
  Be aware that reinitializing may involve a full data load, so plan accordingly to minimize disruption.
  
  
  
  Monitor for Future Changes: Implement monitoring or alerts for changes in the source table schema to proactively manage any future issues.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to SLT and change log management for additional guidance and best practices.
  
  
  Related Information:
  
  Transaction Codes: 
  
  LTRC: SLT Configuration and Monitoring
  LTR2: Change Log Management
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or specific fixes related to this error.
  SLT Documentation: Review the official SAP documentation for Landscape Transformation for detailed information on managing change logs and handling schema changes.
  
  By following these steps, you should be able to resolve the LTR2_CHANGELOG104 error and ensure that your data replication processes continue to function smoothly.