How To Fix CNV20200166 - Table=&1, field=&2: Missing parameter fields

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 166

• Message text: Table=&1, field=&2: Missing parameter fields

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200166 - Table=&1, field=&2: Missing parameter fields ?

  The SAP error message CNV20200166 indicates that there is a problem with a specific table and field during a data conversion or migration process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer processes.
  Cause:
  The error message "Missing parameter fields" suggests that the system expects certain fields (parameters) to be present in the specified table, but they are either missing or not populated correctly. This can occur due to several reasons:
  
  Incomplete Data Mapping: The mapping of source data to target fields may not have been set up correctly, leading to missing fields.
  Data Structure Changes: If the target table structure has changed (e.g., during an upgrade or migration), the expected fields may no longer exist or may have been renamed.
  Configuration Issues: There may be configuration settings that are not properly defined, leading to the absence of required fields.
  Data Quality Issues: The source data may not contain all the necessary information, resulting in missing fields during the migration process.
  
  Solution:
  To resolve the CNV20200166 error, you can take the following steps:
  
  
  Check Data Mapping: Review the data mapping configuration to ensure that all required fields are correctly mapped from the source to the target table. Make sure that all necessary parameters are included.
  
  
  Review Table Structure: Verify the structure of the target table to ensure that it matches the expected schema. If there have been changes to the table structure, update the mapping accordingly.
  
  
  Validate Source Data: Inspect the source data for completeness and correctness. Ensure that all required fields are populated and that there are no missing values.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration or conversion process you are using. There may be specific guidelines or prerequisites that need to be followed.
  
  
  Check Configuration Settings: Ensure that any relevant configuration settings in the SAP system are correctly defined. This may include settings related to the migration tool or data transfer process.
  
  
  Use SAP Notes: Search for relevant SAP Notes or Knowledge Base Articles (KBAs) that may address this specific error. SAP frequently publishes notes that provide solutions or workarounds for known issues.
  
  
  Engage SAP Support: If the issue persists after following the above steps, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the specific table and field names involved.
  
  
  Related Information:
  
  SAP Migration Cockpit: Familiarize yourself with the SAP 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 minimize errors and ensure a smooth transition.
  Error Logs: Check the error logs or detailed logs generated during the migration process for additional context on the error.
  
  By following these steps, you should be able to identify and resolve the underlying issue causing the CNV20200166 error in your SAP system.