How To Fix CNV_IUUC_REPL_TS023 - RFC communication error for RFC connection &1 (error message: &2)

CNV_IUUC_REPL_TS023 - Overview

• Message type: E = Error

• Message class: CNV_IUUC_REPL_TS - Messages for troubleshooting functions

• Message number: 023

• Message text: RFC communication error for RFC connection &1 (error message: &2)

What causes this issue?

The remote function call (RFC) connection to destination &V1& failed.

System Response

The replication cannot proceed without a valid, working, RFC connection.
The interface layer returned "&V2&" to the SAP application.

How to fix this error?

Check the RFC connection &V1& in the <DS:TRAN.SM59>RFC Overview</>.

Procedure for System Administrators

Communication failure in RFC to &V1&; text = &V2&.

Error message extract from SAP system. Copyright SAP SE.

CNV_IUUC_REPL_TS023 - Details

• The SAP error message CNV_IUUC_REPL_TS023 indicates an RFC (Remote Function Call) communication error related to a specific RFC connection. This error typically arises during data replication processes, particularly in the context of SAP Landscape Transformation (SLT) or other data replication scenarios.
  
  Cause:
  
  Network Issues: There may be network connectivity problems between the source and target systems.
  RFC Configuration: The RFC destination may not be correctly configured or may be inactive.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Availability: The target system may be down or not reachable.
  Timeouts: The RFC call may be timing out due to long processing times or heavy load on the system.
  Version Mismatch: There may be compatibility issues between the systems involved, especially if they are running different versions of SAP.
  
  
  Solution:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems. You can use tools like ping or traceroute to