How To Fix RSAR154 - Check the connection parameters for the source system

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 154

• Message text: Check the connection parameters for the source system

What causes this issue?

The connection parameters are not correct.
Source system detail message:
&v1& &V2&.

System Response

The source system connection has been terminated.

How to fix this error?

You can find the corresponding input information in an SAP source system
under:
Start menu -> Tools -> Administration -> Monitoring -> System monitoring
-> Servers.
You get possible values for the connection parameters in a concatenated
form, for example <ls>pswdf044_J01_77</>.
In this example, the application server would be <zh> pswdf044</>, the
system ID <zh>J01</> and the system number <zh>77</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR154 - Check the connection parameters for the source system ?

  The SAP error message RSAR154, which states "Check the connection parameters for the source system," typically occurs in the context of SAP's Remote Function Call (RFC) or when dealing with data extraction from a source system, such as SAP BW (Business Warehouse) or SAP ECC (Enterprise Central Component). This error indicates that there is an issue with the connection parameters configured for the source system.
  Causes:
  
  Incorrect Connection Parameters: The connection parameters (such as hostname, system number, client, user, password) for the source system may be incorrectly configured.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the source system.
  Authorization Issues: The user credentials provided may not have the necessary authorizations to access the source system.
  Source System Down: The source system may be down or not available at the moment.
  RFC Destination Issues: The RFC destination may not be correctly set up in the SAP system.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection between the systems.
  
  Solutions:
  
  
  Verify Connection Parameters:
  
  Go to transaction SM59 in the SAP GUI.
  Check the RFC destination for the source system and ensure that all parameters (hostname, system number, client, user, password) are correct.
  
  
  
  Test the Connection:
  
  In transaction SM59, select the RFC destination and use the "Test Connection" option to verify if the connection can be established successfully.
  
  
  
  Check Network Connectivity:
  
  Ensure that the network is functioning properly and that there are no issues preventing communication between the systems.
  You can use tools like ping or telnet to check connectivity to the source system.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the connection have the necessary authorizations to access the source system.
  
  
  
  Check Source System Status:
  
  Verify that the source system is up and running. You can check the system status in the SAP GUI or through system monitoring tools.
  
  
  
  Review Firewall Settings:
  
  If applicable, check firewall settings to ensure that they are not blocking the required ports for SAP communication.
  
  
  
  Consult Logs:
  
  Check the SAP system logs (transaction SM21) and the application 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 specific issues related to RSAR154 or RFC connections.
  Documentation: Review SAP documentation on setting up RFC connections and troubleshooting connectivity issues.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the RSAR154 error message.