How To Fix 29851 - Error converting field & &

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 851

• Message text: Error converting field & &

What causes this issue?

Please ask your system administrator.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29851 - Error converting field & & ?

  The SAP error message "29851 Error converting field & &" typically indicates that there is an issue with data conversion in the system. This error can occur in various contexts, such as during data uploads, report generation, or when processing transactions. The error message usually includes two placeholders (represented by "& &") that indicate the specific fields or data elements involved in the conversion issue.
  Causes:
  
  Data Type Mismatch: The data being processed may not match the expected data type for the field. For example, trying to convert a string to a numeric type when the string contains non-numeric characters.
  Invalid Data Format: The data may not be in the correct format. For instance, date formats or currency formats that do not conform to the expected standards.
  Null or Empty Values: Attempting to convert a null or empty value can lead to this error, especially if the target field does not allow nulls.
  Custom Code Issues: If there are custom ABAP programs or enhancements, there may be bugs or logic errors in the code that lead to this conversion error.
  Data Integrity Issues: Corrupted or inconsistent data in the database can also lead to conversion errors.
  
  Solutions:
  
  Check Data Types: Verify that the data types of the fields involved in the conversion are compatible. Ensure that the source data matches the expected format of the target field.
  Validate Data Format: Ensure that the data being processed adheres to the required format. For example, check date formats, numeric formats, and any other specific formatting rules.
  Handle Null Values: Implement checks in your code to handle null or empty values appropriately before attempting conversion.
  Debug Custom Code: If the error occurs in a custom program, use the ABAP debugger to trace the execution and identify where the conversion is failing. Look for any logic that may be causing the issue.
  Data Cleansing: If the error is due to data integrity issues, consider running data cleansing processes to correct any corrupted or inconsistent data in the database.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  Transaction Codes: Depending on where the error occurs, you may want to look at transaction codes like SE80 (Object Navigator), SE38 (ABAP Editor), or ST22 (Dump Analysis) to investigate further.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to data conversion and field definitions to ensure compliance with expected formats.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP Basis or ABAP development team for further investigation.