How To Fix UCI1005 - No connection could be established with target system &1

UCI1005 - Overview

• Message type: E = Error

• Message class: UCI1 - Text for Delta Load

• Message number: 005

• Message text: No connection could be established with target system &1

What causes this issue?

A connection to target system &V1& could not be established.

System Response

Processing will be terminated.

How to fix this error?

Make sure that the following prerequisites are given:
The target system is working and can be logged into.
The logical destination is defined correctly and you can log in as a
<DS:GLOS.49804AF2744DDD4DAEE3FD126F1B4FD6>remote user</>.
If the problem persists, please notify SAP.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCI1005 - No connection could be established with target system &1 ?

  The SAP error message UCI1005, which states "No connection could be established with target system &1," typically indicates that there is an issue with the connection between your SAP system and the target system (which could be another SAP system or a non-SAP system). This error can occur in various contexts, such as during data transfer, remote function calls (RFC), or when trying to access external systems.
  Causes:
  
  Network Issues: There may be network connectivity problems between the source and target systems. This could be due to firewalls, routing issues, or network outages.
  Configuration Errors: The connection settings in the SAP system (such as RFC destinations) may be incorrectly configured. This includes incorrect hostnames, IP addresses, or ports.
  Target System Down: The target system may be down or not reachable due to maintenance or other issues.
  Authorization Issues: The user credentials used to establish the connection may not have the necessary permissions to access the