How To Fix CNVMBTRFC143 - rfc check timed out

CNVMBTRFC143 - Overview

• Message type: E = Error

• Message class: CNVMBTRFC - Messages used in RFC Management and its objects

• Message number: 143

• Message text: rfc check timed out

What causes this issue?

The reason for the bad connection state was that the RFC connection
check exceeds a period of time. To avoid the calling program from
getting a time out we do the rfc checks asychronously. If the connection
check don?t respond in a period of time then the destination get the
connection state 'N'.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNVMBTRFC143 - Details

• The SAP error message CNVMBTRFC143: RFC check timed out typically occurs during a Remote Function Call (RFC) operation, indicating that the system was unable to complete the RFC check within the expected time frame. This can happen for various reasons, including network issues, system performance problems, or configuration errors.
  Causes:
  
  Network Latency: High latency or unstable network connections between the systems involved in the RFC call can lead to timeouts.
  System Performance: If the SAP system is under heavy load or if there are performance issues (e.g., long-running processes, insufficient resources), it may not respond in time.
  
  Configuration Issues: Incorrect settings in the RFC destination or in the SAP system configuration can lead to timeouts.
  Long-running Processes: If the function module being called takes too long to execute, it may exceed the timeout threshold.
  Firewall or Security Settings: Firewalls or security settings may block or slow down the RFC communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network