How To Fix /IWXBE/CORE148 - MQTT on disconnect for channel '&1' - Error in destination

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWXBE/CORE -

• Message number: 148

• Message text: MQTT on disconnect for channel '&1' - Error in destination

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 /IWXBE/CORE148 - MQTT on disconnect for channel '&1' - Error in destination ?

  The SAP error message /IWXBE/CORE148 related to MQTT (Message Queuing Telemetry Transport) indicates that there is an issue with the connection to the MQTT broker for a specific channel. The error message typically states that there is an error in the destination, which means that the system is unable to connect to the specified MQTT broker or channel.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the MQTT broker.
  Broker Configuration: The MQTT broker may not be configured correctly, or the specified channel may not exist.
  Authentication Issues: If the MQTT broker requires authentication, incorrect credentials may lead to connection failures.
  Firewall Restrictions: Firewalls or security groups may be blocking the necessary ports for MQTT communication.
  Broker Down: The MQTT broker itself may be down or experiencing issues.
  Incorrect Channel Name: The channel name specified in the configuration may be incorrect or misspelled.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the MQTT broker. You can use tools like ping or telnet to test connectivity to the broker's IP address and port.
  Verify Broker Configuration: Check the configuration of the MQTT broker to ensure that the channel is correctly set up and that it is running.
  Review Authentication Credentials: If the broker requires authentication, verify that the credentials (username and password) are correct.
  Inspect Firewall Settings: Ensure that any firewalls or security settings allow traffic on the MQTT port (default is 1883 for non-secure connections and 8883 for secure connections).
  Check Broker Status: Verify that the MQTT broker is up and running. You may need to restart the broker if it is down.
  Correct Channel Name: Double-check the channel name in the SAP configuration to ensure it matches the broker's configuration.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for MQTT integration to understand the configuration settings and requirements.
  MQTT Broker Logs: Check the logs of the MQTT broker for any error messages or warnings that could provide more context about the connection issue.
  SAP Notes: Look for any relevant SAP Notes that may address known issues or provide patches related to MQTT connectivity.
  Community Forums: Engage with SAP community forums or support channels for additional insights and troubleshooting tips from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the error message /IWXBE/CORE148 related to MQTT on disconnect for the specified channel.