How To Fix CM_SERVICE_ADMIN404 - No RFC servers are currently logged on at the SAP gateway

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SERVICE_ADMIN - Service Administration

• Message number: 404

• Message text: No RFC servers are currently logged on at the SAP gateway

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 CM_SERVICE_ADMIN404 - No RFC servers are currently logged on at the SAP gateway ?

  The SAP error message CM_SERVICE_ADMIN404 indicates that there are no RFC (Remote Function Call) servers currently logged on at the SAP gateway. This can occur in various scenarios, particularly when trying to access certain services or functionalities that rely on RFC connections.
  Causes:
  
  No Active RFC Destinations: There may be no active RFC destinations configured in the SAP system.
  Gateway Issues: The SAP gateway might not be running or may be misconfigured.
  Network Issues: There could be network connectivity problems preventing the RFC servers from connecting to the SAP system.
  Authorization Issues: The user or service account may not have the necessary authorizations to log on to the RFC server.
  Configuration Errors: Incorrect configuration in the SAP system or in the RFC destination settings.
  
  Solutions:
  
  
  Check RFC Destinations:
  
  Go to transaction SM59 and check the status of the RFC destinations. Ensure that they are configured correctly and are active.
  Test the RFC connection to see if it is working properly.
  
  
  
  Check Gateway Status:
  
  Use transaction SMGW to check the status of the SAP gateway. Ensure that it is running and that there are no errors.
  Look for any active connections and ensure that the gateway is not overloaded.
  
  
  
  Network Connectivity:
  
  Verify that there are no network issues preventing the RFC servers from connecting to the SAP system.
  Check firewall settings and ensure that the necessary ports are open.
  
  
  
  User Authorizations:
  
  Ensure that the user or service account being used has the necessary authorizations to log on to the RFC server.
  Check the roles and profiles assigned to the user.
  
  
  
  Review Configuration:
  
  Review the configuration settings in the SAP system and ensure that they are correct.
  Check for any recent changes that may have affected the RFC connections.
  
  
  
  Restart Services:
  
  If necessary, restart the SAP gateway or the application server to refresh the connections.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SMGW: Gateway Monitor
  SM21: System Log (to check for any related errors)
  ST22: Dump Analysis (to check for any ABAP runtime errors)
  
  
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. You can search for relevant notes in the SAP Support Portal.
  
  
  Documentation: Review the SAP documentation for more details on RFC connections and gateway configurations.
  
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.