How To Fix FDT_DSM004 - System failure using RFC connection &1

FDT_DSM004 - Overview

• Message type: E = Error

• Message class: FDT_DSM - BRFplus: Decision Service Manager

• Message number: 004

• Message text: System failure using RFC connection &1

What causes this issue?

You have performed an action that has led the system to check the
integrity of the assigned managed system. This check has returned an
error.
There can be various reasons for this error, for example:
The managed system is currently down.
The settings for the managed system have changed and do not match the
settings that have been maintained in the RFC destination anymore.
The RFC destination could not be found.
The DSM functionality has not been imported completely into the system.
The minimum release requirements for a managed system are not fulfilled.

System Response

The desired action cannot be performed.

How to fix this error?

Check the RFC destination as well as the managed system itself. If you
cannot find the reason, contact your system administrator.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

FDT_DSM004 - Details

• The SAP error message FDT_DSM004 indicates a system failure when using an RFC (Remote Function Call) connection. This error can occur in various scenarios, often related to issues with the configuration or the underlying system. Here’s a breakdown of the potential causes, solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC call.
  Configuration Errors: Incorrect configuration of the RFC destination in transaction SM59 can lead to this error.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Resource Limitations: The target system may be experiencing resource constraints (e.g., memory, CPU).
  System Downtime: The target system may be down for maintenance or experiencing outages.
  Transport Layer Issues: Problems with the transport layer or middleware that handles the RFC calls.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify connectivity between the systems.
  Ensure that firewalls or network policies are