How To Fix CRM_IC_APPL_UI_CHMSG020 - Function cannot be executed; external system error (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_IC_APPL_UI_CHMSG - Message class for CRM_IC_APPL_UI_COMMCHANNELS

• Message number: 020

• Message text: Function cannot be executed; external system error (&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 CRM_IC_APPL_UI_CHMSG020 - Function cannot be executed; external system error (&2) ?

  The SAP error message CRM_IC_APPL_UI_CHMSG020 indicates that a function cannot be executed due to an external system error. This error typically occurs in the context of the SAP Customer Relationship Management (CRM) application, particularly when interacting with external systems or services.
  Possible Causes:
  
  External System Unavailability: The external system that the CRM is trying to communicate with may be down or unreachable.
  Network Issues: There could be network connectivity problems preventing communication between the SAP system and the external system.
  Configuration Issues: Incorrect configuration settings in the SAP system or the external system can lead to this error.
  Authorization Issues: The user or system may not have the necessary permissions to access the external system.
  Data Format Issues: The data being sent to or received from the external system may not be in the expected format, leading to processing errors.
  Timeouts: The request to the external system may be timing out due to long processing times.
  
  Solutions:
  
  Check External System Status: Verify that the external system is up and running. If it is down, you may need to wait until it is back online.
  Network Connectivity: Ensure that there are no network issues. You can use tools like ping or traceroute to check connectivity to the external system.
  Review Configuration: Check the configuration settings in both the SAP system and the external system. Ensure that all necessary parameters are correctly set.
  Check Authorizations: Ensure that the user or system has the necessary authorizations to access the external system. This may involve checking roles and permissions.
  Validate Data Formats: Review the data being sent to the external system to ensure it meets the expected format and structure.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings for the connection to the external system.
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes like SM21 (System Log) or ST22 (Dump Analysis) for more detailed error logs that can provide additional context.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches and updates.
  Debugging: If you have access to the development environment, consider debugging the function to identify the exact point of failure.
  Consult Documentation: Review the documentation for both the SAP CRM and the external system to ensure compatibility and correct usage.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support or your system administrator for further assistance.