How To Fix /BUILD/CORE004 - Error: during conversion to xstring.

SAP Error Message - Details

• Message type: E = Error

• Message class: /BUILD/CORE -

• Message number: 004

• Message text: Error: during conversion 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 /BUILD/CORE004 - Error: during conversion to xstring. ?

  The SAP error message /BUILD/CORE004 Error: during conversion to xstring typically occurs when there is an issue with converting data types in ABAP, particularly when trying to convert a string or other data type to an xstring (a binary string). This error can arise in various scenarios, such as when handling binary data, file uploads, or when working with certain function modules.
  Causes:
  
  Invalid Data Format: The data being converted may not be in the expected format, leading to conversion failures.
  Length Issues: The length of the data being converted may exceed the limits of the xstring type.
  Null or Empty Values: Attempting to convert a null or empty string to xstring can trigger this error.
  Encoding Issues: Mismatched character encoding can lead to conversion problems, especially when dealing with different character sets.
  Incorrect Function Module Usage: Using a function module that expects a different data type than what is being provided can also cause this error.
  
  Solutions:
  
  Check Data Format: Ensure that the data you are trying to convert is in the correct format. If you are converting a string, make sure it is properly formatted and does not contain invalid characters.
  Validate Input Length: Ensure that the length of the input data does not exceed the maximum length allowed for xstring.
  Handle Null Values: Before conversion, check if the input data is null or empty. If it is, handle it appropriately (e.g., by providing a default value).
  Verify Encoding: Ensure that the character encoding of the input data matches the expected encoding for the conversion. If necessary, convert the data to the correct encoding before attempting the conversion.
  Review Function Module Usage: Double-check the function module or method you are using for conversion. Make sure you are passing the correct data types and parameters.
  
  Related Information:
  
  ABAP Documentation: Review the SAP ABAP documentation for details on data types, especially xstring and string conversions.
  Debugging: Use the ABAP debugger to step through the code where the error occurs. This can help identify the exact point of failure and the state of the variables involved.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional context.
  Community Forums: Consider searching or posting on SAP community forums (like SAP Community or Stack Overflow) for insights from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the /BUILD/CORE004 error and implement a suitable solution.