How To Fix CNV_IUUC_REPL_ADV_SE104 - Duplicate entries available for the data type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPL_ADV_SE - MEssage class for package CNV_IUUC_REPL_ADV_SETTINGS

• Message number: 104

• Message text: Duplicate entries available for the data type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPL_ADV_SE104 - Duplicate entries available for the data type &1 ?

  The SAP error message CNV_IUUC_REPL_ADV_SE104 indicates that there are duplicate entries for a specific data type in the context of the SAP Landscape Transformation (SLT) replication process. This error typically arises during data replication when the system encounters multiple records that have the same key or identifier, which violates the uniqueness constraint expected by the replication process.
  Cause:
  
  
  Duplicate Data in Source System: The most common cause is that the source system (the system from which data is being replicated) contains duplicate entries for the specified data type. This could be due to data quality issues or incorrect data entry.
  
  
  Configuration Issues: There may be issues with the configuration of the SLT replication settings, such as incorrect mapping or settings that do not account for the uniqueness of the data.
  
  
  Data Model Changes: Changes in the data model or structure in the source system that have not been reflected in the SLT configuration can also lead to this error.
  
  
  Solution:
  
  
  Identify Duplicate Entries: 
  
  Query the source system to identify the duplicate entries for the specified data type. You can use SQL queries or transaction codes to find duplicates based on the key fields.
  
  
  
  Data Cleansing: 
  
  Once duplicates are identified, you will need to clean the data in the source system. This may involve deleting or merging duplicate records to ensure that each key is unique.
  
  
  
  Review SLT Configuration: 
  
  Check the SLT configuration settings to ensure that they are correctly set up to handle the data type in question. Make sure that the mapping and replication settings are appropriate.
  
  
  
  Reinitialize Replication: 
  
  After resolving the duplicates, you may need to reinitialize the replication process. This can be done by stopping the replication, clearing the data in the target system, and then starting the replication again.
  
  
  
  Monitoring and Alerts: 
  
  Implement monitoring and alerting mechanisms to catch duplicate entries in the future before they cause replication issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SLT or LTMOM to manage and monitor the SLT replication process.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  Documentation: Refer to the official SAP documentation for SLT for best practices on data replication and handling duplicates.
  
  By addressing the root cause of the duplicates and ensuring proper configuration, you can resolve the CNV_IUUC_REPL_ADV_SE104 error and maintain a smooth data replication process.