How To Fix CNV_IUUC_REPL_ADV_SE135 - No Key Mapping availble

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: 135

• Message text: No Key Mapping availble

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPL_ADV_SE135 - No Key Mapping availble ?

  The SAP error message CNV_IUUC_REPL_ADV_SE135: No Key Mapping available typically occurs in the context of data replication or migration processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services. This error indicates that the system is unable to find a key mapping for the data being processed, which is essential for ensuring that the data can be correctly replicated or transformed.
  Causes:
  
  
  Missing Key Mapping Entries: The most common cause is that the key mapping table does not contain the necessary entries for the data being processed. This can happen if the source data has not been properly mapped to the target system.
  
  
  Configuration Issues: There may be issues with the configuration of the SLT or data replication settings, leading to improper mapping of keys.
  
  
  Data Consistency Issues: If the source data has inconsistencies or if the data structure has changed (e.g., changes in primary keys), it can lead to this error.
  
  
  Replication Settings: Incorrect settings in the replication configuration can also lead to missing key mappings.
  
  
  Solutions:
  
  
  Check Key Mapping Table: Verify the key mapping table (usually CNV_MBT_* tables) to ensure that the necessary mappings exist. If they are missing, you may need to create them manually or re-run the mapping process.
  
  
  Reconfigure SLT: If the configuration is incorrect, review the SLT configuration settings. Ensure that the source and target systems are correctly set up and that the necessary tables are included in the replication.
  
  
  Data Consistency Check: Perform a consistency check on the source data to ensure that there are no missing or incorrect primary keys. If there are issues, resolve them before attempting the replication again.
  
  
  Review Replication Settings: Check the replication settings in the SLT configuration to ensure that they are correctly set up to handle the data being processed.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SLT or data services you are using. There may be specific patches or updates that address this issue.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance. They may provide insights based on the specific context of your implementation.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SLT Documentation: Review the official SAP documentation for SLT to understand the key mapping process and how to configure it correctly.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.