How To Fix CACSRFC003 - Cannot determine parameters of target system

SAP Error Message - Details

• Message type: E = Error

• Message class: CACSRFC - Messages From The CACSRFC Area

• Message number: 003

• Message text: Cannot determine parameters of target system

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CACSRFC003 - Cannot determine parameters of target system ?

  The SAP error message CACSRFC003: Cannot determine parameters of target system typically occurs in the context of Remote Function Calls (RFC) when the system is unable to retrieve the necessary parameters for a target system. This can happen for various reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  
  Missing or Incorrect RFC Destination: The RFC destination may not be configured correctly in the SAP system. This could include incorrect connection parameters or missing entries in the RFC destination settings.
  
  
  Network Issues: There may be network connectivity issues between the SAP systems, preventing the source system from reaching the target system.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  
  
  Target System Down: The target system may be down or not reachable due to maintenance or other issues.
  
  
  Configuration Errors: There may be configuration errors in the SAP system settings related to the RFC connections.
  
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the source system.
  Verify the settings for the RFC destination (e.g., connection type, target host, system number, client, user, password).
  Test the connection using the "Connection Test" button to ensure it is working correctly.
  
  
  
  Network Connectivity:
  
  Ensure that there are no firewall or network issues preventing communication between the source and target systems.
  Use tools like ping or telnet to check connectivity to the target system.
  
  
  
  User Authorizations:
  
  Check the user credentials used in the RFC destination for proper authorizations.
  Ensure that the user has the necessary roles and permissions to perform the required actions in the target system.
  
  
  
  Check Target System Status:
  
  Verify that the target system is up and running.
  Check for any scheduled maintenance or downtime that might affect connectivity.
  
  
  
  Review System Logs:
  
  Check the system logs (transaction SM21) for any related error messages that might provide more context about the issue.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that might address specific issues related to RFC connections and the error message CACSRFC003.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  ST22: Dump Analysis (to check for any ABAP runtime errors)
  SICF: Maintain HTTP Services (if using HTTP connections)
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on configuring RFC destinations and troubleshooting RFC issues.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the CACSRFC003 error message in your SAP system.