How To Fix CNV_CMIS_M_10079 - Special table mapping; source table &1 --> target table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_M_10 - Message class for Migration

• Message number: 079

• Message text: Special table mapping; source table &1 --> target table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_M_10079 - Special table mapping; source table &1 --> target table &2 ?

  The SAP error message CNV_CMIS_M_10079 indicates an issue related to special table mapping during a data migration or conversion process. This error typically arises in the context of SAP's Conversion and Migration tools, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  The error message CNV_CMIS_M_10079 suggests that there is a problem with the mapping between a source table and a target table. The specific causes can include:
  
  Missing Mapping Definition: The mapping between the source and target tables may not be defined correctly or may be missing entirely.
  Data Type Mismatch: There could be a mismatch in data types between the source and target fields, which prevents successful data transfer.
  Inconsistent Data: The data in the source table may not conform to the expected format or constraints of the target table.
  Configuration Issues: There may be configuration issues in the migration settings that affect how tables are mapped.
  
  Solution:
  To resolve the error CNV_CMIS_M_10079, you can take the following steps:
  
  
  Check Mapping Definitions:
  
  Review the mapping definitions for the source and target tables. Ensure that all necessary mappings are defined and correctly configured.
  
  
  
  Validate Data Types:
  
  Verify that the data types of the fields in the source table match those in the target table. If there are discrepancies, you may need to adjust the mapping or transform the data accordingly.
  
  
  
  Examine Data Consistency:
  
  Check the data in the source table for any inconsistencies or invalid entries that may cause issues during the mapping process. Cleanse the data if necessary.
  
  
  
  Review Migration Configuration:
  
  Go through the migration configuration settings to ensure that they are set up correctly. Look for any options that may affect table mapping.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or guides related to the specific migration tool you are using. There may be additional troubleshooting steps or best practices outlined.
  
  
  
  Use Transaction Codes:
  
  Utilize relevant transaction codes (like LTMC for Migration Cockpit) to access the migration tools and check for any logs or detailed error messages that can provide more context.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it is often used for data migration tasks.
  Data Migration Best Practices: Review best practices for data migration in SAP environments to ensure a smooth process.
  
  By following these steps, you should be able to identify and resolve the underlying issues causing the CNV_CMIS_M_10079 error.