How To Fix CMS057 - RFC server &1 cannot be started - &2: &3&4

SAP Error Message - Details

• Message type: E = Error

• Message class: CMS - KPro: Content Management Service

• Message number: 057

• Message text: RFC server &1 cannot be started - &2: &3&4

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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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMS057 - RFC server &1 cannot be started - &2: &3&4 ?

  The SAP error message CMS057 indicates that an RFC (Remote Function Call) server cannot be started. The message typically includes placeholders for specific details, such as the name of the RFC server and additional error information. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  
  Configuration Issues: The RFC server may not be properly configured in the SAP system. This could include incorrect parameters in the RFC destination or missing entries in the configuration tables.
  
  
  Authorization Problems: The user or service account trying to start the RFC server may not have the necessary authorizations.
  
  
  Network Issues: There may be network connectivity problems preventing the RFC server from starting or communicating with other systems.
  
  
  Resource Limitations: The system may be running low on resources (e.g., memory, CPU) which can prevent the RFC server from starting.
  
  
  System Errors: There could be underlying system errors or issues with the SAP kernel or other components that are preventing the RFC server from starting.
  
  
  Service Not Running: The required service or background job that the RFC server depends on may not be running.
  
  
  Solutions:
  
  
  Check Configuration: Verify the configuration of the RFC destination in transaction SM59. Ensure that all parameters are correctly set and that the destination is reachable.
  
  
  Review Authorizations: Check the authorizations of the user or service account. Ensure that it has the necessary permissions to start the RFC server.
  
  
  Network Troubleshooting: Test the network connectivity between the systems involved. Use tools like ping or telnet to check if the required ports are open and accessible.
  
  
  Monitor System Resources: Use transaction SM50 or SM66 to monitor system resources. If the system is under heavy load, consider optimizing performance or increasing resources.
  
  
  Check Logs: Review the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages that could provide more context.
  
  
  Restart Services: If a required service is not running, try restarting it. This can often resolve transient issues.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide patches.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SM21 - System Log
  ST22 - Dump Analysis
  SM50 / SM66 - Process Overview
  ST11 - Developer Traces
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more detailed information on RFC configuration and troubleshooting.
  
  
  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 CMS057 error in your SAP system.