How To Fix /SMB/FKCHK051 - Data format error (Conversion exit)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/FKCHK -

• Message number: 051

• Message text: Data format error (Conversion exit)

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/FKCHK051 - Data format error (Conversion exit) ?

  The SAP error message /SMB/FKCHK051 Data format error (Conversion exit) typically occurs during the processing of financial documents, particularly when there is an issue with the data format or conversion exit used for certain fields. This error is often related to the handling of currency, amounts, or other numeric fields that require specific formatting.
  Cause:
  
  Incorrect Data Format: The data being processed does not conform to the expected format. This could be due to incorrect decimal places, invalid characters, or unexpected data types.
  Conversion Exit Issues: The conversion exit (a function that formats data for display or storage) may not be correctly defined or may not be able to handle the input data.
  Field Length Exceeded: The data being input may exceed the defined length for the field in the database.
  Localization Issues: Different countries have different formats for numbers and currencies, and if the system is not configured correctly for the user's locale, it can lead to this error.
  
  Solution:
  
  Check Input Data: Review the data being input to ensure it adheres to the expected format. Look for any invalid characters or incorrect decimal placements.
  Review Conversion Exits: Check the conversion exits defined for the fields in question. Ensure they are correctly implemented and can handle the data being processed.
  Field Length Validation: Ensure that the data being entered does not exceed the maximum length defined for the fields in the database.
  Localization Settings: Verify that the system's localization settings are correctly configured for the user's region. This includes checking the currency format and number format settings.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error occurs and what data is being processed at that point.
  
  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 problems.
  Transaction Codes: Use transaction codes like SE37 (Function Module) or SE80 (Object Navigator) to investigate the conversion exits and their implementations.
  Documentation: Review SAP documentation related to financial document processing and data formats to understand the expected formats and any specific requirements.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.