How To Fix GB311 - Incorrect conversion of field & in table &

SAP Error Message - Details

• Message type: E = Error

• Message class: GB - Messages used by the Boolean code generator

• Message number: 311

• Message text: Incorrect conversion of field & in table &

What causes this issue?

You have used a field for which a conversion routine is stored in a
field-literal or a field-field compare. An error occurred either when a
constant was entered (type, format, or length) or when the conversion
exit was called.

System Response

Processing is terminated.

How to fix this error?

Check the literal entered in the compare if it exists.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GB311 - Incorrect conversion of field & in table & ?

  The SAP error message GB311, which states "Incorrect conversion of field & in table &," typically occurs when there is a data type mismatch or an issue with the conversion of data between different formats in the SAP system. This error can arise in various contexts, such as during data uploads, report generation, or when processing transactions.
  Causes:
  
  Data Type Mismatch: The field in question may have a different data type than what is expected. For example, trying to convert a character field to a numeric field without proper formatting.
  Invalid Data: The data being processed may contain invalid characters or formats that cannot be converted correctly.
  Configuration Issues: There may be issues with the configuration of the data types in the database or in the ABAP program.
  Custom Code: If there is custom ABAP code involved, it may not handle data conversions properly.
  Database Issues: Sometimes, the underlying database may have constraints or issues that prevent proper data conversion.
  
  Solutions:
  
  Check Data Types: Verify the data types of the fields involved in the conversion. Ensure that they are compatible and that the data being processed matches the expected format.
  Data Validation: Review the data being processed for any invalid entries. Cleanse the data to ensure it adheres to the expected formats.
  Review Custom Code: If custom ABAP code is involved, review it for any potential issues with data conversion logic. Ensure that proper error handling is in place.
  Debugging: Use the ABAP debugger to trace the execution of the program and identify where the conversion is failing. This can provide insights into the specific data causing the issue.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or program to see if there are known issues or patches available.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it appears to be a bug or a more complex issue.
  
  Related Information:
  
  Transaction Codes: Depending on where the error occurs, you may want to check transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Module) to investigate the relevant tables and fields.
  SAP Notes: Search for SAP Notes related to GB311 or the specific transaction you are working with. SAP Notes often contain fixes or workarounds for known issues.
  Data Dictionary: Use transaction SE11 to check the definitions of the tables and fields involved in the error to ensure they are set up correctly.
  
  By following these steps, you should be able to identify the cause of the GB311 error and implement a solution to resolve it.