How To Fix BM398 - Field overflow: Field &; value &

SAP Error Message - Details

• Message type: E = Error

• Message class: BM - Development class BZME - units of measure

• Message number: 398

• Message text: Field overflow: Field &; value &

What causes this issue?

If field &v1& were filled with the value &v2&, an overflow would occur.

System Response

The operation is not performed.

How to fix this error?

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BM398 - Field overflow: Field &; value & ?

  The SAP error message BM398, which states "Field overflow: Field &; value &," typically indicates that a value being processed exceeds the defined length or capacity of a specific field in the SAP system. This can occur in various contexts, such as during data entry, data import, or processing transactions.
  Cause:
  
  Field Length Exceeded: The value being entered or processed is longer than the maximum length defined for that field in the database or data structure.
  Data Type Mismatch: The data type of the value does not match the expected type for the field, leading to overflow.
  Incorrect Configuration: Custom fields or configurations may not align with the expected data formats or lengths.
  Data Import Issues: When importing data from external sources, the incoming data may not conform to the expected field lengths.
  
  Solution:
  
  Check Field Lengths: Review the field definitions in the relevant data structure (e.g., database table, data element) to determine the maximum allowed length. Ensure that the value being entered does not exceed this length.
  Data Validation: Implement validation checks before data entry or processing to ensure that values conform to the expected formats and lengths.
  Adjust Data: If the value is too long, consider truncating it or modifying the input to fit within the allowed limits.
  Review Customizations: If the error occurs in a customized program or transaction, review the code to ensure that it correctly handles field lengths and data types.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the transaction or module where the error occurs.
  Testing: If changes are made, conduct thorough testing to ensure that the issue is resolved and that no new issues are introduced.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes depending on the context (e.g., MM, SD, FI).
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message BM398.
  Debugging: If you have access to debugging tools, you can trace the program execution to identify where the overflow occurs.
  User Exits and BAdIs: If applicable, review any user exits or Business Add-Ins (BAdIs) that may be affecting the data processing.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.