How To Fix CNV_CMIS_A_20206 - Table &1 and field &2 has different data types in system &3 and system &4

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 206

• Message text: Table &1 and field &2 has different data types in system &3 and system &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_A_20206 - Table &1 and field &2 has different data types in system &3 and system &4 ?

  The SAP error message CNV_CMIS_A_20206 indicates a data type mismatch between two systems during a data migration or conversion process. This error typically arises when you are trying to transfer data from one SAP system to another (for example, during a system upgrade, data migration, or when using SAP's Conversion Tools) and the data types of a specific table field do not match between the source system and the target system.
  Cause:
  
  Data Type Mismatch: The field in the source system has a different data type compared to the corresponding field in the target system. This could be due to differences in the SAP versions, customizations, or configurations.
  Field Length Differences: Even if the data types are the same (e.g., both are CHAR), the length of the fields might differ, leading to this error.
  Inconsistent Data Model: Changes in the data model between different versions of SAP or custom developments can lead to discrepancies in data types.
  
  Solution:
  
  Check Data Types: Verify the data types of the specified table and field in both systems. You can do this by using transaction SE11 (Data Dictionary) to view the table definitions.
  Adjust Data Types: If you have control over the target system, you may need to adjust the data type or length of the field in the target system to match the source system.
  Modify Migration Logic: If changing the target system is not feasible, you may need to modify the migration logic to handle the data type conversion appropriately. This could involve using conversion routines or mapping the data types correctly.
  Consult Documentation: Review the SAP documentation or notes related to the specific migration or conversion tool you are using, as there may be specific guidelines or known issues related to data type mismatches.
  Testing: After making changes, perform thorough testing to ensure that the data migration works as expected without further errors.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on handling data type mismatches.
  Data Migration Tools: Familiarize yourself with the tools you are using for data migration (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have specific features or settings to handle data type conversions.
  Version Differences: Be aware of the differences in data types and structures between different versions of SAP, especially if you are migrating from an older version to a newer one.
  
  By addressing the data type mismatch and ensuring consistency between the source and target systems, you should be able to resolve the CNV_CMIS_A_20206 error.