How To Fix RT672 - Unknown service; last test : &4

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 672

• Message text: Unknown service; last test : &4

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT672 - Unknown service; last test : &4 ?

  The SAP error message RT672 "Unknown service; last test: &4" typically indicates that there is an issue with the communication between the SAP system and the underlying services it relies on. This error can occur in various contexts, such as when trying to connect to a database, a web service, or other external systems.
  Causes:
  
  Service Not Registered: The service you are trying to access may not be registered in the SAP system.
  Network Issues: There may be network connectivity issues preventing access to the service.
  Configuration Errors: Incorrect configuration settings in the SAP system or the service itself can lead to this error.
  Service Unavailability: The service may be down or not running at the time of the request.
  Authorization Issues: The user or system may not have the necessary permissions to access the service.
  
  Solutions:
  
  
  Check Service Registration:
  
  Ensure that the service you are trying to access is properly registered in the SAP system. You can check this in transaction codes like SMICM (ICM Monitor) or SICF (HTTP Service Hierarchy).
  
  
  
  Verify Network Connectivity:
  
  Test the network connection to the service. You can use tools like ping or telnet to check if the service is reachable from the SAP server.
  
  
  
  Review Configuration Settings:
  
  Check the configuration settings for the service in the SAP system. Ensure that all parameters are correctly set up, including hostnames, ports, and protocols.
  
  
  
  Check Service Status:
  
  Verify that the service is running and available. If it is a web service, you can try accessing it directly through a web browser or a tool like Postman.
  
  
  
  Review Authorization:
  
  Ensure that the user or system has the necessary authorizations to access the service. You may need to check roles and profiles assigned to the user.
  
  
  
  Check Logs:
  
  Review the SAP system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Restart Services:
  
  If the service is down, restarting it may resolve the issue. This could involve restarting the application server or the specific service itself.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number or keywords in the SAP Support Portal.
  Documentation: Review the official SAP documentation for the specific service you are trying to access for any additional configuration or troubleshooting steps.
  Community Forums: Consider checking SAP Community forums or other online resources where similar issues may have been discussed.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.