How To Fix CNV_DMC_UI_FW020 - &1 value '&2' contains invalid characters

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_UI_FW - DMC UI Framework

• Message number: 020

• Message text: &1 value '&2' contains invalid characters

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_UI_FW020 - &1 value '&2' contains invalid characters ?

  The SAP error message CNV_DMC_UI_FW020 typically indicates that a value being processed contains invalid characters. This error is often encountered in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools.
  Cause:
  The error occurs when:
  
  The input value for a specific field contains characters that are not allowed according to the field's definition or data type.
  This could be due to special characters, spaces, or incorrect formatting that does not comply with the expected input format.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Field: Check the error message for the specific field name (indicated by &1) and the invalid value (indicated by &2). This will help you pinpoint where the issue lies.
  
  
  Review Allowed Characters: Consult the documentation or data dictionary for the specific field to understand what characters are allowed. This may include:
  
  Alphanumeric characters
  Specific symbols
  Length restrictions
  
  
  
  Clean the Data: Modify the input data to remove or replace invalid characters. This may involve:
  
  Stripping out special characters
  Trimming leading or trailing spaces
  Ensuring the data conforms to the expected format (e.g., date formats, numeric formats)
  
  
  
  Test the Changes: After cleaning the data, re-run the migration or conversion process to see if the error persists.
  
  
  Use Data Validation Tools: If available, use data validation tools or scripts to automatically check for and correct invalid characters in your dataset before processing.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that may address this specific error or provide additional guidance.
  
  
  Related Information:
  
  SAP Data Migration Cockpit (DMC): This tool is used for migrating data into SAP systems. Familiarity with its functionalities and limitations can help in troubleshooting issues.
  Data Quality: Ensuring high data quality before migration can prevent many common errors, including those related to invalid characters.
  Field Definitions: Understanding the data model and field definitions in your SAP system is crucial for successful data migration.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with a technical expert who specializes in data migration processes.