How To Fix S_UNIFIED_CON603 - Set profile parameter ucon/rfc/active to 1 to activate runtime

SAP Error Message - Details

• Message type: E = Error

• Message class: S_UNIFIED_CON - Message Class for Unified Connectivity

• Message number: 603

• Message text: Set profile parameter ucon/rfc/active to 1 to activate runtime

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message S_UNIFIED_CON603 - Set profile parameter ucon/rfc/active to 1 to activate runtime ?

  The SAP error message S_UNIFIED_CON603 indicates that the Unified Connectivity (UCON) framework is not activated in your SAP system. This framework is essential for enabling certain connectivity features, particularly for RFC (Remote Function Call) connections.
  Cause:
  The error occurs because the profile parameter ucon/rfc/active is set to 0 (inactive). This means that the UCON framework is not enabled, which prevents the system from processing certain RFC calls or functionalities that rely on this framework.
  Solution:
  To resolve this error, you need to activate the UCON framework by changing the profile parameter. Here are the steps to do this:
  
  
  Access the SAP system: Log in to your SAP system with appropriate administrative privileges.
  
  
  Open the Profile Parameter Maintenance:
  
  You can do this by using transaction code RZ10.
  Alternatively, you can also use transaction RZ11 to change the parameter dynamically.
  
  
  
  Change the Parameter:
  
  In RZ10, select the instance profile you want to modify (usually the default profile).
  Look for the parameter ucon/rfc/active.
  Change its value from 0 to 1.
  
  
  
  Save the Changes: After making the change, save the profile.
  
  
  Restart the SAP System: For the changes to take effect, you will need to restart the SAP instance. This can be done through the SAP Management Console (SAP MMC) or using the appropriate command line tools.
  
  
  Verify the Change: After the restart, you can verify that the parameter is set correctly by using transaction RZ11 and checking the value of ucon/rfc/active.
  
  
  Related Information:
  
  Unified Connectivity (UCON): This is a framework in SAP that allows for enhanced connectivity options, including the ability to manage and monitor RFC connections more effectively.
  Profile Parameters: These are settings that control various aspects of the SAP system's behavior. They can be set at the instance level or globally.
  RFC (Remote Function Call): This is a protocol used in SAP for communication between different SAP systems or between SAP and non-SAP systems.
  
  Additional Considerations:
  
  Ensure that you have the necessary authorizations to change profile parameters and restart the SAP system.
  It is advisable to perform such changes during a maintenance window to avoid disruption to users.
  Always back up your current profile settings before making changes, in case you need to revert.
  
  By following these steps, you should be able to resolve the S_UNIFIED_CON603 error and activate the UCON framework in your SAP system.