How To Fix OC547 - Unknown error detected in CUSTOMER-FUNCTION '340'

SAP Error Message - Details

• Message type: E = Error

• Message class: OC - IS-Oil: BDRP Bulk Distribution Requirement Planning messages

• Message number: 547

• Message text: Unknown error detected in CUSTOMER-FUNCTION '340'

What causes this issue?

The <GL:linear/volumetric_conversion_constant>linear/volumetric
conversion calculation</> in your system incorporates additional
processing which has been installed and activated by your own system
administrators via a <GL:user_exit>user exit</>.

System Response

System issues this message, conversion does not take place.

How to fix this error?

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OC547 - Unknown error detected in CUSTOMER-FUNCTION '340' ?

  The SAP error message OC547, which indicates an "Unknown error detected in CUSTOMER-FUNCTION '340'," typically arises during the execution of a custom function module or enhancement in SAP. This error can be somewhat vague, as it does not provide specific details about the underlying issue. Here are some potential causes, solutions, and related information to help you troubleshoot this error:
  Possible Causes:
  
  Custom Code Issues: The error may originate from a custom function module or enhancement (in this case, '340') that has been poorly implemented or contains bugs.
  Data Issues: The input data being processed by the function may be invalid or not conforming to expected formats, leading to unexpected behavior.
  Authorization Problems: The user executing the function may lack the necessary authorizations to perform certain actions within the custom function.
  System Configuration: There may be configuration issues in the system that affect how the custom function operates.
  Transport Issues: If the custom code was recently transported from one environment to another (e.g., from development to production), there may be inconsistencies or missing dependencies.
  
  Solutions:
  
  Debugging: Use the SAP debugger to step through the custom function module '340' to identify where the error occurs. Look for any unhandled exceptions or logic errors.
  Check Logs: Review the application logs (transaction SLG1) and system logs (transaction SM21) for any additional error messages or warnings that may provide more context.
  Review Custom Code: Examine the code in the custom function module for any potential issues, such as incorrect data handling, uninitialized variables, or logic errors.
  Test with Different Data: Try executing the function with different sets of input data to see if the error is data-specific.
  Authorization Check: Ensure that the user has the necessary authorizations to execute the function. You can use transaction SU53 to check for authorization failures.
  Consult Documentation: If the function is part of a third-party solution or enhancement, consult the documentation or support resources provided by the vendor.
  Transport Validation: If the issue arose after a transport, validate that all necessary objects and dependencies were included in the transport request.
  
  Related Information:
  
  SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Community Forums: Check SAP Community forums or other online resources where SAP professionals discuss similar issues. You may find others who have encountered the same error and can share their solutions.
  SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance, especially if you have a support contract.
  
  By following these steps, you should be able to identify the root cause of the OC547 error and implement a suitable solution.