How To Fix 0Q055 - RFC error &1 during call from &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 0Q - Microsoft SQL Server Porting

• Message number: 055

• Message text: RFC error &1 during call from &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 0Q055 - RFC error &1 during call from &2 ?

  The SAP error message 0Q055, which indicates an RFC (Remote Function Call) error, typically occurs when there is an issue with communication between SAP systems or between an SAP system and an external system. The message format usually includes placeholders for specific details, such as the RFC destination and the function module being called.
  Causes of Error 0Q055
  
  
  Network Issues: There may be network connectivity problems between the SAP systems or between the SAP system and the external system.
  
  
  RFC Destination Configuration: The RFC destination may not be configured correctly. This includes incorrect settings for the target system, such as the hostname, system number, or client.
  
  
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to execute the function module.
  
  
  Function Module Issues: The function module being called may not exist, may be inactive, or may have been changed in a way that is incompatible with the calling program.
  
  
  System Load: High load on the SAP system or the target system can lead to timeouts or failures in processing the RFC call.
  
  
  Transport Layer Issues: If the systems are on different transport layers, there may be compatibility issues.
  
  
  Solutions
  
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems. You can use tools like ping or traceroute to diagnose network issues.
  
  
  Verify RFC Destination: Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination. Ensure that the connection parameters are correct and that the connection test is successful.
  
  
  Check Authorizations: Verify that the user ID used for the RFC call has the necessary authorizations to execute the function module. You can check this in transaction SU01.
  
  
  Validate Function Module: Ensure that the function module being called exists and is active. You can check this in transaction SE37 or SE80.
  
  
  Monitor System Performance: Check the performance of both the calling and target systems. Use transaction SM50 or SM66 to monitor active processes and system load.
  
  
  Review Logs: Check the system logs for any additional error messages that may provide more context. You can use transaction SM21 to view the system log.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address known issues related to the error message.
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SU01: User Maintenance
  SE37: Function Module
  SM21: System Log
  SM50/SM66: Process Overview
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more detailed information on RFC errors and troubleshooting steps.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to diagnose and resolve the RFC error 0Q055 effectively.