FRE494 - Communication failure (&1) occurred during data transfer for doc. no. &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FRE - F&R CON R/3 - Messages

• Message number: 494

• Message text: Communication failure (&1) occurred during data transfer for doc. no. &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FRE494 - Communication failure (&1) occurred during data transfer for doc. no. &2 ?

  The SAP error message FRE494 indicates a communication failure that occurred during data transfer for a specific document number. This error typically arises in the context of data transfer processes, such as when integrating with external systems or during batch processing.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the external system or service.
  Configuration Errors: Incorrect configuration settings in the communication parameters (e.g., RFC destinations, logical systems).
  Timeouts: The communication process may have timed out due to long processing times or delays in the external system.
  System Overload: The SAP system or the external system may be experiencing high load, leading to communication failures.
  Authorization Issues: The user or system may not have the necessary authorizations to perform the data transfer.
  Data Format Issues: The data being transferred may not be in the expected format, causing the receiving system to reject it.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the SAP system and the external system. You can use tools like ping or traceroute to diagnose connectivity.
  Review Configuration: Verify the configuration settings for RFC destinations and logical systems in transaction SM59. Ensure that they are correctly set up.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the relevant configuration.
  Monitor System Performance: Check the performance of both the SAP system and the external system to ensure they are not overloaded. You may need to optimize performance or schedule data transfers during off-peak hours.
  Check Authorizations: Ensure that the user or system performing the data transfer has the necessary authorizations. You can review roles and authorizations in transaction PFCG.
  Validate Data Formats: Ensure that the data being sent is in the correct format expected by the receiving system. You may need to validate or transform the data before sending it.
  
  Related Information:
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SM21 - System Log
  ST22 - Dump Analysis
  SLG1 - Application Log
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message.
  Logs and Traces: Review logs and traces for more detailed error messages that can provide additional context for the failure.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with your SAP Basis team or SAP support for further assistance.