How To Fix BCOMEC029 - Connection &1 is already in wait state

SAP Error Message - Details

• Message type: E = Error

• Message class: BCOMEC - Business Communication: Messages of external components

• Message number: 029

• Message text: Connection &1 is already in wait state

What causes this issue?

You are already in wait mode for the connection &V1&. Therefore, you
cannot switch to another window in wait mode as well.
Further information on the external software component:
&V3&

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

The error can occur in 2 different places:
1. In the connected gateway
2. In the underlying CTI software
In this case the error occurred in (&V4&).
The return code for the underlying CTI software is: &V2&

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BCOMEC029 - Connection &1 is already in wait state ?

  The SAP error message BCOMEC029 indicates that a connection is already in a "wait" state. This typically occurs in scenarios involving asynchronous communication or when a connection is being established but is not yet completed, leading to a situation where the system is trying to initiate a new connection while the previous one is still pending.
  Causes:
  
  Network Latency: High latency in the network can cause connections to take longer than expected, leading to multiple attempts to establish a connection.
  Resource Limitations: The system may be hitting resource limits, such as the maximum number of concurrent connections allowed.
  Configuration Issues: Incorrect configuration settings in the SAP system or the connected systems can lead to connection issues.
  Application Logic: The application logic may be attempting to establish a new connection before the previous one has completed.
  
  Solutions:
  
  Check Connection Status: Monitor the status of the connections to see if they are still in a wait state. You can use transaction codes like SM58 (for asynchronous RFC) to check the status of the connections.
  Increase Connection Limits: If the system is hitting resource limits, consider increasing the maximum number of allowed connections in the configuration settings.
  Optimize Network Performance: Investigate network performance and latency issues. Ensure that the network is stable and that there are no bottlenecks.
  Review Application Logic: Check the application logic to ensure that it is not trying to establish multiple connections unnecessarily. Implement proper error handling and retry mechanisms.
  Timeout Settings: Adjust timeout settings for connections to ensure that they do not remain in a wait state for too long.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM58 (for monitoring asynchronous RFC calls) and SM21 (for system logs).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide specific guidance based on the version of SAP you are using.
  Documentation: Review SAP documentation related to connection management and troubleshooting RFC issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.