How To Fix LTR2_CHANGELOG110 - Target cardinality changed

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_CHANGELOG -

• Message number: 110

• Message text: Target cardinality changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_CHANGELOG110 - Target cardinality changed ?

  The SAP error message LTR2_CHANGELOG110 with the description "Target cardinality changed" typically occurs in the context of SAP Landscape Transformation (SLT) Replication. This error indicates that there is a mismatch in the expected cardinality of the target table compared to what is defined in the source table. Cardinality refers to the uniqueness of the data in a table, and a change in cardinality can lead to issues in data replication.
  Cause:
  
  Schema Changes: Changes in the target table schema, such as adding or removing primary keys or unique constraints, can lead to this error.
  Data Model Changes: If the data model has changed (e.g., changes in relationships between tables), it can affect the cardinality.
  Configuration Issues: Incorrect configuration in the SLT settings or replication settings can also lead to this error.
  Data Integrity Issues: If the data in the source table does not match the expected structure or constraints of the target table, it can trigger this error.
  
  Solution:
  
  Check Table Definitions: Verify that the target table's structure (including primary keys and unique constraints) matches the source table's structure. Ensure that any changes made to the source table are also reflected in the target table.
  Adjust SLT Configuration: Review the SLT configuration settings to ensure they are correctly set up for the current data model. This may involve adjusting the replication settings or reconfiguring the SLT connection.
  Data Consistency: Ensure that the data in the source table is consistent and adheres to the expected cardinality. You may need to clean up the data or resolve any duplicates.
  Reinitialize Replication: If necessary, you may need to stop the replication, make the required changes, and then reinitialize the replication process. This can involve deleting the existing replication setup and creating it anew.
  Consult Documentation: Refer to SAP documentation or notes related to SLT and the specific error message for additional guidance and troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  SLT Documentation: Review the official SAP SLT documentation for best practices on setting up and managing data replication.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.