How To Fix CRM_IC_SSC_RFC018 - No back-end system defined

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_IC_SSC_RFC - Message class for SSC RFCs

• Message number: 018

• Message text: No back-end system defined

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_IC_SSC_RFC018 - No back-end system defined ?

  The SAP error message CRM_IC_SSC_RFC018: No back-end system defined typically occurs in the context of SAP CRM (Customer Relationship Management) when there is an issue with the configuration of the back-end system that the CRM system is trying to connect to. This error indicates that the system is unable to find a defined back-end system for the operation being performed.
  Cause:
  
  Missing Configuration: The back-end system (such as SAP ERP) has not been defined in the CRM system.
  Incorrect RFC Destination: The RFC (Remote Function Call) destination that connects the CRM system to the back-end system may not be set up correctly.
  Authorization Issues: The user may not have the necessary authorizations to access the back-end system.
  Network Issues: There may be network connectivity issues preventing the CRM system from reaching the back-end system.
  System Landscape Changes: Changes in the system landscape (like system upgrades or migrations) may have led to the loss of configuration.
  
  Solution:
  
  
  Define Back-End System:
  
  Go to transaction SPRO in the SAP GUI.
  Navigate to SAP Customizing Implementation Guide > Customer Relationship Management > Master Data > Define Back-End System.
  Ensure that the back-end system is defined correctly.
  
  
  
  Check RFC Destination:
  
  Use transaction SM59 to check the RFC destination settings.
  Ensure that the RFC destination for the back-end system is correctly configured and is pointing to the right system.
  Test the connection to ensure it is working.
  
  
  
  Review Authorizations:
  
  Check the user roles and authorizations to ensure that the user has the necessary permissions to access the back-end system.
  
  
  
  Network Connectivity:
  
  Verify that there are no network issues preventing the CRM system from connecting to the back-end system.
  Check firewall settings and network configurations.
  
  
  
  System Landscape Review:
  
  If there have been recent changes to the system landscape, review the configurations to ensure everything is set up correctly.
  
  
  
  Check Logs:
  
  Review the system logs (transaction SLG1) for any additional error messages that may 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.
  Documentation: Refer to the official SAP documentation for CRM and the specific version you are using for more detailed configuration steps.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the issue causing the CRM_IC_SSC_RFC018 error.