How To Fix CNV888 - Table &1 excluded because there are no mapping values for any fields

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 888

• Message text: Table &1 excluded because there are no mapping values for any fields

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV888 - Table &1 excluded because there are no mapping values for any fields ?

  The SAP error message CNV888 indicates that a specific table (denoted as &1) has been excluded from a conversion or migration process because there are no mapping values available for any of its fields. This typically occurs during data migration or conversion activities, such as when using the SAP S/4HANA Migration Cockpit or other data migration tools.
  Cause:
  
  
  No Mapping Defined: The primary cause of this error is that there are no mapping values defined for the fields in the specified table. This means that the system does not know how to translate or convert the data from the source system to the target system.
  
  
  Configuration Issues: There may be issues in the configuration of the migration project, such as missing or incorrect mapping settings.
  
  
  Data Structure Changes: If the structure of the source data has changed and does not match the expected structure in the target system, it can lead to this error.
  
  
  Inactive Mapping: The mapping for the fields might be inactive or not properly activated in the migration tool.
  
  
  Solution:
  
  
  Define Mapping Values: Check the mapping configuration for the specified table. Ensure that all necessary fields have corresponding mapping values defined. You may need to create or adjust the mapping rules to include the required fields.
  
  
  Review Migration Settings: Go through the migration project settings to ensure that all configurations are correct and that the necessary tables and fields are included in the migration scope.
  
  
  Activate Mappings: If mappings exist but are inactive, make sure to activate them. This can usually be done in the migration tool's mapping interface.
  
  
  Check Data Structure: Verify that the data structure in the source system matches the expected structure in the target system. If there are discrepancies, you may need to adjust the source data or the mapping accordingly.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be additional guidelines or troubleshooting steps provided for handling mapping issues.
  
  
  Testing: After making changes, perform a test migration to ensure that the mappings are now correctly recognized and that the error does not occur.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on mapping issues.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, familiarize yourself with its features and capabilities regarding data mapping and transformation.
  Community Forums: Consider searching or posting in SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By addressing the mapping values and ensuring proper configuration, you should be able to resolve the CNV888 error and successfully include the table in your migration process.