How To Fix CNV_CMIS_A_20242 - Different key length found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO)

• Message number: 242

• Message text: Different key length found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_A_20242 - Different key length found ?

  The SAP error message CNV_CMIS_A_20242: Different key length found typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or during the execution of a data migration project. This error indicates that there is a mismatch in the expected key length of a data field compared to what is actually present in the source data.
  Cause:
  
  Data Structure Mismatch: The source data structure may have a different key length than what is defined in the target system. This can happen if the source system has been customized or if there are discrepancies in the data model.
  Data Type Differences: The data types of the fields in the source and target systems may not match, leading to issues when trying to map the data.
  Configuration Issues: Incorrect configuration settings in the migration tools or in the target system can lead to this error.
  Data Quality Issues: The source data may contain unexpected values or formats that do not conform to the expected key length.
  
  Solution:
  
  Check Data Mapping: Review the data mapping configuration to ensure that the key lengths in the source and target systems match. Adjust the mapping if necessary.
  Data Cleansing: Perform data cleansing on the source data to ensure that all key fields conform to the expected lengths and formats.
  Adjust Target Structure: If feasible, adjust the target system's data structure to accommodate the key lengths from the source system.
  Review Migration Settings: Check the settings in the migration tool to ensure that they are correctly configured for the data being migrated.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand any specific requirements or limitations regarding key lengths.
  Testing: Conduct thorough testing with a subset of data to identify and resolve any issues before performing a full migration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Data Migration Tools: Familiarize yourself with the specific SAP data migration tools being used (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) and their documentation for best practices and troubleshooting tips.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.