How To Fix SR162 - MQTT password not allowed if MQTT user is not specified

SAP Error Message - Details

• Message type: E = Error

• Message class: SR - RFC utilities

• Message number: 162

• Message text: MQTT password not allowed if MQTT user is not specified

What causes this issue?

A password was created for MQTT logons, but the user is initial. A
password must be associated with a user, for security reasons.

System Response

How to fix this error?

Enter the MQTT user or delete the MQTT password.

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 SR162 - MQTT password not allowed if MQTT user is not specified ?

  The SAP error message SR162, which states "MQTT password not allowed if MQTT user is not specified," typically occurs in the context of configuring MQTT (Message Queuing Telemetry Transport) settings in SAP systems. This error indicates that there is an attempt to set a password for an MQTT connection without specifying a corresponding user.
  Cause:
  The error arises because the MQTT protocol requires authentication when a password is provided. If a password is set in the configuration but no user is specified, the system cannot authenticate the connection, leading to this error message.
  Solution:
  To resolve the SR162 error, you can take the following steps:
  
  
  Specify an MQTT User:
  
  Ensure that you have specified a valid MQTT user in your configuration. This user should correspond to the credentials that are expected by the MQTT broker.
  
  
  
  Remove the Password:
  
  If you do not intend to use a user for authentication, you can remove the password from the configuration. This means that the connection will be established without authentication, which may be acceptable depending on your security requirements.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings in your SAP system where the MQTT connection is defined. Ensure that both the user and password fields are correctly filled out or left empty as per your authentication needs.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation or the MQTT broker documentation for specific guidelines on how to configure MQTT connections properly.
  
  
  
  Test the Connection:
  
  After making the necessary changes, test the MQTT connection to ensure that it is working as expected without any errors.
  
  
  
  Related Information:
  
  MQTT Protocol: MQTT is a lightweight messaging protocol designed for low-bandwidth, high-latency, or unreliable networks. It is commonly used in IoT (Internet of Things) applications.
  Authentication Methods: Depending on the MQTT broker you are using, there may be different authentication methods available (e.g., username/password, token-based authentication).
  SAP Integration: If you are integrating SAP with IoT devices or services using MQTT, ensure that your security settings align with your organization's policies and the requirements of the MQTT broker.
  
  By following these steps, you should be able to resolve the SR162 error and successfully configure your MQTT connection in SAP.