How To Fix SCA_DS059 - Connection test for RFC destination &1 failed (see longtext)

SAP Error Message - Details

• Message type: E = Error

• Message class: SCA_DS - Datasource

• Message number: 059

• Message text: Connection test for RFC destination &1 failed (see longtext)

What causes this issue?

Destination or object provider &V1& could be reached but a failure has
occurred in the target system. Typical causes are listed below.
Problem reported by RFC Layer
&V2&&V3&&V4&

System Response

It is possible to store the configuration. Before it can be used,
however, the issue has to be corrected.

Procedure for System Administrators

If function SCA_REMOTE_DATA_VERSION cannot be found, please check
whether the remote stub is correctly installed in the target system
If an authorization failure has occurred, please check if the user which
is assigned to the destination, is authorized to call the respective
stub functions.
If syntax errors have occurred, please check the correct installation of
the RFC stub.
&FURTHER_HINTS&
See note <ZH>2364916</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SCA_DS059 - Connection test for RFC destination &1 failed (see longtext) ?

  The SAP error message SCA_DS059 indicates that a connection test for a Remote Function Call (RFC) destination has failed. This can occur for various reasons, and understanding the cause is essential for troubleshooting. Here’s a breakdown of potential causes, solutions, and related information:
  Causes:
  
  
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect parameters such as the target system, user credentials, or connection type.
  
  
  Network Issues: There may be network connectivity issues between the SAP system and the target system. This could be due to firewalls, routing problems, or network outages.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to connect to the target system.
  
  
  Target System Down: The target system may be down or not reachable, which would prevent a successful connection.
  
  
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured, leading to connection failures.
  
  
  Version Compatibility: There may be compatibility issues between the SAP systems involved, especially if they are running different versions.
  
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination that is failing and check its configuration.
  Ensure that the connection type, target host, system number, and client are correctly set.
  
  
  
  Test Connection:
  
  In transaction SM59, select the RFC destination and use the "Connection Test" button to verify connectivity.
  If the test fails, check the error message for more details.
  
  
  
  Verify Network Connectivity:
  
  Use tools like ping or telnet to check if the target system is reachable from the SAP server.
  Ensure that any firewalls or network security settings allow traffic between the two systems.
  
  
  
  Check User Credentials:
  
  Ensure that the user specified in the RFC destination has the correct password and necessary authorizations in the target system.
  
  
  
  Check Target System Status:
  
  Verify that the target SAP system is up and running. You can check this by logging into the target system directly.
  
  
  
  Review SAP Gateway Configuration:
  
  Ensure that the SAP Gateway is running and properly configured. You can check the status using transaction SMGW.
  
  
  
  Consult SAP Notes:
  
  Look for any relevant SAP Notes that may address known issues with RFC connections or specific error codes.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: SAP Gateway Monitor
  SU01: User Maintenance (to check user authorizations)
  
  
  
  SAP Documentation: Refer to the official SAP Help Portal for detailed documentation on RFC connections and troubleshooting.
  
  
  Logs and Traces: Check the system logs (transaction SM21) and developer traces (transaction ST11) for any additional error messages that may provide more context.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the SCA_DS059 error message.