How To Fix CLB2658 - Communication error: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CLB2 - SAIL: Common messages

• Message number: 658

• Message text: Communication error: &2

What causes this issue?

The communication with the service provider resulted in an error message
reported by the HTTP client.
Result code: &V1&
Message: &V2&

System Response

The method is not successfully completed.

How to fix this error?

Check the communication settings. This can be the basic communication
settings that you can set with transaction <DS><DS:TRAN.SMICM>SMICM</>
</>, the setup of SAML or trusted connections, invalid certificates, or
missing settings on the service provider side.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CLB2658 - Communication error: &2 ?

  The SAP error message CLB2658, which indicates a "Communication error: &2," typically arises in the context of SAP's Collaborative Lifecycle Management (CLM) or related applications. This error can occur due to various reasons, including network issues, configuration problems, or issues with the underlying services.
  Causes:
  
  Network Issues: There may be connectivity problems between the SAP system and the external service or system it is trying to communicate with.
  Service Unavailability: The service that the SAP system is trying to reach may be down or not responding.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external service can lead to communication errors.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication between systems.
  Timeouts: The request may be timing out due to long processing times or heavy load on the server.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the external service is stable and functioning properly. You can use tools like ping or traceroute to diagnose connectivity issues.
  Verify Service Status: Check if the external service is up and running. If it is down, you may need to wait until it is restored or contact the service provider.
  Review Configuration Settings: Double-check the configuration settings in both the SAP system and the external service to ensure they are correct. This includes checking URLs, ports, and authentication settings.
  Examine Firewall Rules: If applicable, review firewall settings to ensure that they are not blocking the communication. You may need to work with your network/security team to adjust these settings.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the SAP system or the external service to allow for longer processing times.
  Check Logs: Review the application logs in SAP and the external service for any additional error messages or clues that can help diagnose the issue.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the documentation for the specific SAP module or service you are using to understand any specific requirements or configurations needed for communication.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups, as other users may have encountered similar issues and can provide insights.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.