How To Fix FMKK100 - Error in RFC of line item list

SAP Error Message - Details

• Message type: E = Error

• Message class: FMKK - Document Interface IS-PS After FI-CA

• Message number: 100

• Message text: Error in RFC of line item list

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FMKK100 - Error in RFC of line item list ?

  The SAP error message FMKK100, which indicates "Error in RFC of line item list," typically occurs in the context of Financial Management (FM) or Controlling (CO) modules when there is an issue with Remote Function Call (RFC) communication between systems or within the same system. This error can arise due to various reasons, including configuration issues, network problems, or data inconsistencies.
  Causes of FMKK100 Error
  
  
  RFC Connection Issues: There may be a problem with the RFC connection between the systems. This could be due to network issues, incorrect configuration, or the target system being down.
  
  
  Authorization Problems: The user executing the transaction may not have the necessary authorizations to access the required data or execute the RFC function.
  
  
  Data Inconsistencies: There may be inconsistencies in the data being processed, such as missing or incorrect entries in the database.
  
  
  System Configuration: Incorrect configuration settings in the SAP system can lead to this error. This includes settings related to the Financial Management module or the RFC destination.
  
  
  Performance Issues: If the system is under heavy load, it may lead to timeouts or failures in processing the RFC calls.
  
  
  Solutions to FMKK100 Error
  
  
  Check RFC Connections: Verify the RFC connections in transaction SM59. Ensure that the connections are correctly configured and that the target system is reachable.
  
  
  Review Authorizations: Check the user authorizations using transaction SU53 or SUIM. Ensure that the user has the necessary permissions to execute the required functions.
  
  
  Analyze Logs: Use transaction SLG1 to check the application logs for more detailed error messages that can provide insights into the root cause of the issue.
  
  
  Data Validation: Review the data being processed for any inconsistencies or missing entries. Ensure that all required data is available and correctly formatted.
  
  
  System Performance: Monitor system performance and check for any bottlenecks. If the system is under heavy load, consider optimizing performance or scheduling the job during off-peak hours.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs or screenshots.
  
  
  Related Information
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 (RFC Destinations), SU53 (Authorization Check), SLG1 (Application Log), and ST22 (Dump Analysis) for troubleshooting.
  
  
  Documentation: Review SAP documentation related to Financial Management and RFC communication for best practices and configuration guidelines.
  
  
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  
  By following these steps, you should be able to diagnose and resolve the FMKK100 error effectively.