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

SCA_DS059 - Overview

• 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,