How To Fix CRD_RUN303 - Error in narrowing cast: See long text

SAP Error Message - Details

• Message type: E = Error

• Message class: CRD_RUN - General Messages for CRD Runtime

• Message number: 303

• Message text: Error in narrowing cast: See long text

What causes this issue?

The system attempted to access interface &V1&using a
<DS:GLOS.40B2B2D01AD7B34AA1254C778FC1A6DB>narrowing cast</> . However
the interface has <ZH>not</> been implemented in the current instance
of the source.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CRD_RUN303 - Error in narrowing cast: See long text ?

  The SAP error message CRD_RUN303, which states "Error in narrowing cast: See long text," typically occurs in the context of data processing or transformation within SAP systems, particularly when dealing with data types and conversions. This error indicates that there is an issue with converting a data type to a more specific type (narrowing cast) that is not compatible or valid.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is an attempt to convert a larger data type (e.g., FLOAT, DOUBLE, or STRING) to a smaller or more specific data type (e.g., INTEGER, CHAR, etc.) that cannot accommodate the value.
  Invalid Data: The data being processed may contain values that are not valid for the target data type, leading to conversion failures.
  Program Logic Errors: There may be issues in the program logic where the data types are not handled correctly, leading to attempts to cast incompatible types.
  
  Solution:
  
  Check Data Types: Review the data types involved in the operation that triggered the error. Ensure that the source data type can be safely converted to the target data type without loss of information or precision.
  Data Validation: Implement validation checks to ensure that the data being processed is valid for the target data type before attempting the conversion.
  Modify the Code: If you have access to the ABAP code or the relevant program, modify the casting logic to ensure that it handles data types correctly. Use appropriate conversion functions (e.g., CONVERT, CAST, etc.) that are designed to handle such conversions safely.
  Error Handling: Implement error handling to catch such exceptions and provide meaningful error messages or fallback mechanisms.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common errors.
  Documentation: Refer to the SAP documentation for data types and conversion functions to understand the limitations and proper usage.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.