How To Fix SR161 - Changing the MQTT data (initializing MQTT password)

SAP Error Message - Details

• Message type: E = Error

• Message class: SR - RFC utilities

• Message number: 161

• Message text: Changing the MQTT data (initializing MQTT password)

What causes this issue?

The user used for the MQTT logon was changed. The password used for MQTT
logons was initialized, for security reasons.

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?

Enter the password for the current MQTT user again, if required.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SR161 - Changing the MQTT data (initializing MQTT password) ?

  The SAP error message SR161, which pertains to changing the MQTT data (specifically initializing the MQTT password), typically indicates an issue with the configuration or setup of the MQTT (Message Queuing Telemetry Transport) protocol within the SAP system. This error can arise due to various reasons, including incorrect configuration settings, authentication issues, or connectivity problems.
  Causes of SR161 Error
  
  
  Incorrect MQTT Configuration: The MQTT settings in the SAP system may not be configured correctly. This includes the broker address, port, and other parameters.
  
  
  Authentication Issues: If the MQTT broker requires authentication (username and password), and the credentials provided are incorrect or not set, this error may occur.
  
  
  Network Connectivity: There may be network issues preventing the SAP system from connecting to the MQTT broker.
  
  
  Broker Configuration: The MQTT broker itself may not be configured to accept connections from the SAP system, or it may have restrictions in place.
  
  
  Version Compatibility: There may be compatibility issues between the SAP system and the MQTT broker version being used.
  
  
  Solutions to SR161 Error
  
  
  Verify Configuration Settings:
  
  Check the MQTT configuration in the SAP system. Ensure that the broker address, port, and other parameters are correctly set.
  Ensure that the MQTT password is correctly initialized and matches what is configured on the broker.
  
  
  
  Check Authentication Credentials:
  
  If the MQTT broker requires authentication, verify that the username and password are correct.
  Update the credentials in the SAP system if necessary.
  
  
  
  Test 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 address and port.
  
  
  
  Review Broker Configuration:
  
  Check the MQTT broker settings to ensure it is configured to accept connections from the SAP system.
  Look for any access control lists (ACLs) or firewall settings that may be blocking the connection.
  
  
  
  Check for Updates:
  
  Ensure that both the SAP system and the MQTT broker are updated to the latest versions to avoid compatibility issues.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation and the MQTT broker documentation for specific configuration guidelines and troubleshooting steps.
  
  
  
  Logs and Monitoring:
  
  Check the logs in both the SAP system and the MQTT broker for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  MQTT Protocol: Familiarize yourself with the MQTT protocol and its configuration, as understanding how it works can help in diagnosing issues.
  Community Forums: Consider reaching out to SAP community forums or support channels for assistance from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the SR161 error in your SAP system.