How To Fix CNV_IUUC_REPLICATION128 - Error retrieving information about the target system

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 128

• Message text: Error retrieving information about the target system

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION128 - Error retrieving information about the target system ?

  The SAP error message CNV_IUUC_REPLICATION128 typically indicates an issue with retrieving information about the target system during a data replication process, often related to the SAP Landscape Transformation (SLT) replication setup. This error can arise due to various reasons, including configuration issues, connectivity problems, or authorization issues.
  Causes:
  
  Connectivity Issues: There may be network problems preventing the source system from connecting to the target system.
  Configuration Errors: The SLT configuration might not be set up correctly, leading to issues in retrieving the necessary information.
  Authorization Problems: The user credentials used for the connection may not have the required authorizations to access the target system.
  Target System Unavailability: The target system might be down or not reachable due to maintenance or other issues.
  Incorrect RFC Destination: The Remote Function Call (RFC) destination might be incorrectly configured or not exist.
  
  Solutions:
  
  Check Connectivity: Ensure that the source system can reach the target system. You can use tools like ping or telnet to verify network connectivity.
  Review SLT Configuration: Go through the SLT configuration settings to ensure that all parameters are correctly set up. This includes checking the connection settings and replication settings.
  Verify Authorizations: Ensure that the user used for the connection has the necessary authorizations in both the source and target systems. This may involve checking roles and profiles assigned to the user.
  Check Target System Status: Verify that the target system is up and running. If it is down, coordinate with the system administrators to bring it back online.
  Validate RFC Destination: Check the RFC destination configuration in the SAP system. You can do this using transaction SM59. Ensure that the destination is correctly defined and test the connection.
  Review Logs: Check the SLT logs for more detailed error messages that can provide additional context about the issue. You can find logs in transaction SLT under the "Logs" section.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT, SM59, and SU01 for user management.
  SAP Notes: Look for SAP Notes related to the error message for any patches or updates that may address the issue.
  Documentation: Review the official SAP documentation for SLT to understand the configuration and operational requirements better.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and error messages for a more in-depth analysis.