How To Fix /UI2/CDMFCC300 - Cannot convert string &1 to xstring

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CDMFCC -

• Message number: 300

• Message text: Cannot convert string &1 to xstring

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CDMFCC300 - Cannot convert string &1 to xstring ?

  The SAP error message /UI2/CDMFCC300 Cannot convert string &1 to xstring typically occurs in the context of SAP Fiori or UI5 applications when there is an issue with data type conversion. Specifically, it indicates that the system is trying to convert a string value to an xstring (a binary string) but is unable to do so due to an invalid format or incompatible data.
  Causes:
  
  Invalid String Format: The string being passed may not be in a valid format that can be converted to an xstring. This can happen if the string contains characters that are not valid for the expected binary representation.
  Encoding Issues: There may be issues with character encoding, especially if the string contains special characters or is not properly encoded in UTF-8.
  Data Source Issues: The data being fetched from the backend might be corrupted or not in the expected format.
  Incorrect Data Handling: The application logic may be incorrectly handling the data, leading to an attempt to convert an inappropriate value.
  
  Solutions:
  
  Check Input Data: Verify the string value that is being passed to ensure it is in the correct format. If it contains special characters, ensure they are properly encoded.
  Debugging: Use debugging tools to trace the point in the code where the conversion is attempted. Check the value of the string at that point to identify any anomalies.
  Data Validation: Implement validation checks before attempting the conversion to ensure that the string meets the expected criteria for conversion to xstring.
  Encoding Verification: Ensure that the string is encoded correctly. If necessary, convert the string to the appropriate encoding before attempting the conversion.
  Review Application Logic: Review the application logic to ensure that data is being handled correctly throughout the process, especially when fetching and processing data from the backend.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to the SAP documentation for the specific version of the Fiori/UI5 framework you are using, as there may be specific guidelines or best practices for handling data conversions.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues. They may provide insights or solutions based on their experiences.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.