How To Fix CNV_20800064 - &1: hidden field &2 contains value &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 064

• Message text: &1: hidden field &2 contains value &4

What causes this issue?

During the conversion &V1& (account groups are given in brackets), the
account group changes. Other than for the old one, the field "&V3&"
&V2& (table key without client is given in brackets) is hidden for the
new account group. However the old value "&V4&" is still stored.

System Response

The system keeps the old value "&V4&", but it is not visible in the
maintenance view for the customer record.

How to fix this error?

Check if you really do not want the old value to be visible. If this is
correct, you should delete the value "&V4&", because otherwise it might
be used incorrectly by other transactions or reports.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800064 - &1: hidden field &2 contains value &4 ?

  The SAP error message CNV_20800064 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that a hidden field in the data being processed contains a value that is not acceptable or expected.
  Cause:
  
  
  Hidden Field Value: The error message suggests that a hidden field (field &2) contains a value (&4) that is causing an issue. This could be due to:
  
  Incorrect or unexpected data in the source system.
  Data that does not meet the validation rules defined in the target system.
  A mismatch between the data types or formats expected by the target system.
  
  
  
  Data Mapping Issues: There may be issues with how data is mapped from the source to the target system, leading to invalid values being transferred.
  
  
  Configuration Issues: The configuration settings in the migration tool may not align with the data being processed, leading to errors.
  
  
  Solution:
  
  
  Check Data Source: Review the data in the source system for the specific field mentioned in the error message. Ensure that the values are valid and conform to the expected formats.
  
  
  Review Mapping Rules: Check the mapping rules defined in the migration tool. Ensure that the hidden field is correctly mapped and that the values being transferred are valid for the target system.
  
  
  Adjust Configuration: If necessary, adjust the configuration settings in the migration tool to accommodate the data being processed. This may involve changing validation rules or modifying how data is handled.
  
  
  Data Cleansing: If the data contains invalid values, consider cleansing the data before migration. This may involve correcting or removing problematic entries.
  
  
  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 this error.
  
  
  Testing: After making changes, perform a test migration with a smaller dataset to ensure that the issue is resolved before proceeding with a full migration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Consider searching or posting in SAP community forums or support channels for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.