How To Fix /SMB/FKCHK031 - Data conversion error

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/FKCHK -

• Message number: 031

• Message text: Data conversion error

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 /SMB/FKCHK031 - Data conversion error ?

  The SAP error message /SMB/FKCHK031 Data conversion error typically occurs during the processing of financial documents, particularly when there is an issue with the conversion of data types or formats. This error can arise in various scenarios, such as during the posting of financial transactions, data uploads, or when executing specific financial reports.
  Causes:
  
  Data Format Issues: The data being processed may not conform to the expected format. For example, numeric fields may contain non-numeric characters, or date fields may have incorrect formats.
  Inconsistent Data Types: There may be a mismatch between the expected data type in the SAP system and the actual data being provided. For instance, a field expecting a decimal value might receive a string.
  Configuration Issues: Incorrect configuration settings in the financial module or related components can lead to data conversion errors.
  Custom Code or Enhancements: If there are custom programs or enhancements in place, they may not handle data conversion correctly, leading to errors.
  Data Migration Issues: During data migration from legacy systems to SAP, data may not have been converted properly, leading to inconsistencies.
  
  Solutions:
  
  Check Data Formats: Review the data being processed to ensure that it adheres to the expected formats. This includes checking for numeric values, date formats, and any other specific requirements.
  Validate Input Data: Implement validation checks before processing the data to catch any inconsistencies or errors early in the process.
  Review Configuration Settings: Check the configuration settings in the financial module to ensure they are set up correctly. This may involve reviewing settings related to currency, number formats, and other relevant parameters.
  Debug Custom Code: If custom code is involved, use debugging tools to trace the execution and identify where the data conversion is failing. Make necessary adjustments to handle data types correctly.
  Data Cleansing: If the error is related to data migration, perform data cleansing to correct any inconsistencies in the migrated data.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error message.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE38 (ABAP Editor) or SE80 (Object Navigator) to analyze custom programs or reports that may be causing the issue.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it involves complex configurations or custom developments.
  
  By following these steps, you should be able to identify the root cause of the /SMB/FKCHK031 Data conversion error and implement a suitable solution.